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Yuji Matsuura

Section

Graduate School of Biomedical Engineering

Job title

Professor

Degree

博士（工学）（東北大学）
工学修士（東北大学)

researchmap

https://researchmap.jp/yujimat

J-GLOBAL ID

201401086620912700

Research History 5

2008 - Present

Tohoku University
1996 -

Tohoku University
1994 -

ラトガース大学　研究員
1993 -

住友電気工業
1992 -

Tohoku University

Education 2

Tohoku University　Graduate School, Division of Engineering　電気及通信工学

- 1992/07
Tohoku University　Faculty of Engineering　通信工学

- 1988/03

Committee Memberships 18

電気学会バイオメディカルフォトニクス応用技術専門委員会　委員長

2009/04 - Present
電気学会バイオメディカルフォトニクス応用技術専門委員会　委員長

2009/04 - Present
電子情報通信学会光ファイバ応用技術研究専門委員会　委員

2001/05 - Present
電子情報通信学会光ファイバ応用技術研究専門委員会　委員

2001/05 - Present
SPIE Conference on Optical Fibers and Sensors for Medical Applications　プログラム委員

1999/01 - Present
SPIE Conference on Optical Fibers and Sensors for Medical Applications　プログラム委員

1999/01 - Present
電気学会バイオメディカルフォトニクス先端技術専門委員会　委員

2004/04 - 2009/03
電気学会バイオメディカルフォトニクス先端技術専門委員会　委員

2004/04 - 2009/03
電子情報通信学会光エレクトロニクス・情報・通信と高齢社会の医療・健康技術を考える研究会　委員

2005/04 - 2008/03
電子情報通信学会光エレクトロニクス・情報・通信と高齢社会の医療・健康技術を考える研究会　委員

2005/04 - 2008/03
日本光学会「光学」編集委員会　委員

2003/04 - 2006/03
日本光学会「光学」編集委員会　委員

2003/04 - 2006/03
レーザー学会研究委員会　委員

2003/08 -
レーザー学会研究委員会　委員

2003/08 -
レーザー学会東北・北海道支部委員会　庶務幹事

2001/05 -
電子情報通信学会光エレクトロニクス研究専門委員会　委員

2001/05 -
電子情報通信学会光エレクトロニクス研究専門委員会　委員

2001/05 -
レーザー学会東北・北海道支部委員会　庶務幹事

2001/05 -

Show all ︎Show first 5

Professional Memberships 5

レーザー学会
SPIE
電子情報通信学会
OSA
応用物理学会

Research Interests 35

光熱変換分光法
血糖値測定
非侵襲血中成分分析
光音響分光法
赤外ATR分光法
中空ファイバ
赤外ファイバ
中空導波路
エキシマレーザ
紫外レーザ
光ファイバ
X線伝送
真空紫外
軟X線
内視鏡
YAGレーザ
レーザ加工
形状センサ
呼気分析
紫外光伝送
MOCVD法
中空光ファイバ
CVD
赤外分光法
ガス分光分析
曲り導波路
F2レーザ
マルチコアファイバ
軟X線光学素子
レーザ誘起プラズマ
ラマン分光法
アルミMOCVD
アリミMOCVD
真空紫外光源
赤外レーザ

Research Areas 7

Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electronic devices and equipment /
Nanotechnology/Materials / Optical engineering and photonics /
Life sciences / Biomaterials /
Life sciences / Biomedical engineering /
Life sciences / Medical systems /
Life sciences / Rehabilitation science /
Life sciences / Neurosurgery /

Awards 9

フェロー

2021/05　レーザー学会
電気学会第23回優秀技術活動賞技術報告賞,

2020/05　電気学会　バイオメディカル・フォトニクス応用技術３
電気学会第21回優秀技術活動賞技術報告賞

2018/05　電気学会　バイオメディカル・フォトニクス応用技術２
第16回優秀技術活動賞技術報告賞

2013/04/23　社団法人電気学会
文部科学大臣表彰若手科学者賞

2005/04/13　文部科学省　光伝送工学分野における超広帯域中空光ファイバの研究
トーキン科学技術振興財団研究奨励賞

2000/03/07　トーキン科学技術振興財団
応用物理学会講演奨励賞

1998/09/15　応用物理学会　エキシマレーザー用アルミニウム中空ファイバ－MOCVD法による製作と基本特性－
仙台応用情報学研究振興財団光エレクトロニクス学而会フェロー

1992/03　学而会
篠原記念学術奨励賞（第６回）

1991/03　電子情報通信学会

Show all ︎Show 5

Papers 353

Distinguishing IDH mutation status in gliomas using FTIR-ATR spectra of peripheral blood plasma indicating clear traces of protein amyloid aggregation. International-journal

Saiko Kino, Masayuki Kanamori, Yoshiteru Shimoda, Kuniyasu Niizuma, Hidenori Endo, Yuji Matsuura

BMC cancer　24　(1)　222-222　2024/02/16

DOI： 10.1186/s12885-024-11970-y 　

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BACKGROUND: Glioma is a primary brain tumor and the assessment of its molecular profile in a minimally invasive manner is important in determining treatment strategies. Among the molecular abnormalities of gliomas, mutations in the isocitrate dehydrogenase (IDH) gene are strong predictors of treatment sensitivity and prognosis. In this study, we attempted to non-invasively diagnose glioma development and the presence of IDH mutations using multivariate analysis of the plasma mid-infrared absorption spectra for a comprehensive and sensitive view of changes in blood components associated with the disease and genetic mutations. These component changes are discussed in terms of absorption wavenumbers that contribute to differentiation. METHODS: Plasma samples were collected at our institutes from 84 patients with glioma (13 oligodendrogliomas, 17 IDH-mutant astrocytoma, 7 IDH wild-type diffuse glioma, and 47 glioblastomas) before treatment initiation and 72 healthy participants. FTIR-ATR spectra were obtained for each plasma sample, and PLS discriminant analysis was performed using the absorbance of each wavenumber in the fingerprint region of biomolecules as the explanatory variable. This data was used to distinguish patients with glioma from healthy participants and diagnose the presence of IDH mutations. RESULTS: The derived classification algorithm distinguished the patients with glioma from healthy participants with 83% accuracy (area under the curve (AUC) in receiver operating characteristic (ROC) = 0.908) and diagnosed the presence of IDH mutation with 75% accuracy (AUC = 0.752 in ROC) in cross-validation using 30% of the total test data. The characteristic changes in the absorption spectra suggest an increase in the ratio of β-sheet structures in the conformational composition of blood proteins of patients with glioma. Furthermore, these changes were more pronounced in patients with IDH-mutant gliomas. CONCLUSIONS: The plasma infrared absorption spectra could be used to diagnose gliomas and the presence of IDH mutations in gliomas with a high degree of accuracy. The spectral shape of the protein absorption band showed that the ratio of β-sheet structures in blood proteins was significantly higher in patients with glioma than in healthy participants, and protein aggregation was a distinct feature in patients with glioma with IDH mutations.
Mid-infrared photoacoustic spectroscopy based on ultrasound detection for blood component analysis. International-journal

Ryota Sasaki, Saiko Kino, Yuji Matsuura

Biomedical optics express　14　(7)　3841-3852　2023/07/01

DOI： 10.1364/BOE.494615 　

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For the non-invasive measurement of biological tissue, a piezoelectric photoacoustic spectroscopy (PZT-PAS) system that detects a single frequency of ultrasound induced by the irradiation of pulse-modulated mid-infrared laser light was developed. PA spectra of the optical phantom and biological samples were obtained, and the relationship between the PA signal intensity and optical absorbance in the fingerprint region (930-1,200 cm-1) was analyzed to estimate the optical absorbance. The resonance vibration of the induced ultrasound was utilized to further increase the signal strength for biological tissue measurement. Consequently, PA spectrum reflecting the absorption of components in biological tissues was obtained.
Mid-infrared photoacoustic spectroscopy using a quantum cascade laser for non-invasive blood component analysis

Masanobu Maeno, Saiko Kino, Yuji Matsuura

JAPANESE JOURNAL OF APPLIED PHYSICS　62　(7)　2023/07

DOI： 10.35848/1347-4065/ace0a8 　

ISSN： 0021-4922

eISSN： 1347-4065
Mid-infrared laser heterodyne spectrometer by hollow optical fiber and its newly designed coupler

Hiromu Nakagawa, Satoki Tsukada, Takashi Katagiri, Yasumasa Kasaba, Isao Murata, Yasuhiro Hirahara, Yuji Matsuura, Atsushi Yamazaki

Applied Optics　62　(6)　A31-A36　2023/02/20

DOI： 10.1364/AO.475426 　

ISSN： 1559-128X

eISSN： 2155-3165
Transmission properties of 700-μm-bore hollow optical fibers based on flexible Ni-Ti tube

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII　2022/03/02
Publisher: SPIE
DOI： 10.1117/12.2605723 　
最先端医療の今赤外分光法による無侵襲血中脂質分析

木野彩子, 松浦祐司

Medical Science Digest　48　(1)　52-53　2022/01
Publisher: (株)ニュー・サイエンス社
ISSN： 1347-4340
赤外分光法による無侵襲血中脂質分析

木野彩子, 松浦祐司

Medical Science Digest　48　52-53　2022
Vacuum ultraviolet absorption spectroscopy analysis of breath acetone using a hollow optical fiber gas cell

Yudai Kudo, Saiko Kino, Yuji Matsuura

Sensors (Switzerland)　21　(2)　1-11　2021/01/02

DOI： 10.3390/s21020478 　

ISSN： 1424-8220
中赤外分光法を用いた無侵襲血中脂質分析 Peer-reviewed

木野彩子, 松浦祐司

レーザー研究　49　516-520　2021
Measurement and uniformization of power distribution on the prism for biomedical applications of mid-infrared, attenuated-total-reflection spectroscopy

T. Koyama, S. Kino, T. Sasaki, Y. Wada, R. Kasahara, Y. Oba, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　11635　2021

DOI： 10.1117/12.2582270 　

ISSN： 1605-7422
Fabrication of 800-μm-bore hollow optical fibers based on completely non-fragile and flexible Ni-Ti tube for the infrared

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi Wei Shi, Xiao Song Zhu, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　11635　2021

DOI： 10.1117/12.2576477 　

ISSN： 1605-7422
Quantitative analysis of acetone in breath using vacuum-ultraviolet spectroscopy based on hollow-optical-fiber gas cell

Y. Kudo, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　11635　2021

DOI： 10.1117/12.2582485 　

ISSN： 1605-7422
Biomedical ATR Measurement System Using Quantum Cascade Lasers –Homogenization of Power Distribution on the Prism Surface–

Koyama Takuya, Kino Saiko, Sasaki Toshihide, Wada Yoshio, Kasahara Ryosuke, Oba Yoshihiro, Matsuura Yuji

JSAP Annual Meetings Extended Abstracts　2020.2　652-652　2020/08/26
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2020.2.0_652 　

eISSN： 2436-7613
Health-Care System Based on Infrared Spectroscopy Using Quantum Cascade Lasers and Hollow Optical Fiber

MATSUURA Yuji, KOYAMA Takuya, KASAHARA Ryosuke

The Review of Laser Engineering　48　(6)　306　2020
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.48.6_306 　

ISSN： 0387-0200

eISSN： 1349-6603

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Since bio-molecules show strong optical absorptions in the mid-infrared region, by analyzing the absorption spectrum, a variety of non-invasive diagnosis will be enabled. In this paper, we first show that a socalled “fingerprint spectrum” of glucose is observed in the absorption spectra of lip mucosa using a system equipped with a Fourier-infrared spectrometer (FT-IR) and hollow optical fibers. Then we introduced a blood glucose measurement system using quantum cascade lasers (QCLs) that oscillated in the mid-infrared region to construct a compact, low-cost system. With the QCL-based system, the differential absorption between two wavelengths, which were chosen based on an optical spectrum taken by the FT-IR-based system, exhibits high correlation with the blood glucose level. Finally we identified the optimum combination of wavelengths for blood glucose estimated with a multiple regression analysis model.
Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions

Hiromu Nakagawa, Satoki Tsukada, Yasumasa Kasaba, Yasuhiro Hirahara, Yuji Matsuura, Takashi Katagiri, Isao Murata, Atsushi Yamazaki

Proceedings of SPIE - The International Society for Optical Engineering　11451　2020

DOI： 10.1117/12.2561939 　

ISSN： 0277-786X

eISSN： 1996-756X
Development of the liquid nitrogen cooled hollow core waveguide fiber for the mid-infrared region

Yasuhiro Hirahara, Ryota Ito, Yuji Yokoyama, Yuji Matsuura, Takashi Katagiri, Hiromu Nakagawa, Yasumasa Kasaba, Atsushi Yamazaki

Proceedings of SPIE - The International Society for Optical Engineering　11451　2020

DOI： 10.1117/12.2561187 　

ISSN： 0277-786X

eISSN： 1996-756X
Transmission properties of dielectric-coated hollow optical fibers based on Ni-Ti tube

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi Wei Shi, Xiao Song Zhu, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　11233　2020

DOI： 10.1117/12.2542148 　

ISSN： 1605-7422
All-fiber imaging system for ultra-thin flexible endoscope based on compressed image reconstruction

Tatsuya Kubota, Takashi Katagiri, Yuji Matsuura

MOC 2019 - 24th Microoptics Conference　276-277　2019/11

DOI： 10.23919/MOC46630.2019.8982870 　
Compact fluorescence endoscope with speckle-generating fiber probe

Takaichi Okubo, Takashi Katagiri, Yuji Matsuura

MOC 2019 - 24th Microoptics Conference　124-125　2019/11

DOI： 10.23919/MOC46630.2019.8982836 　
Non-invasive Blood Glucose Measurement System Using Quantum Cascade Lasers –Investigation of Light Coupling to Prism for Accuracy Improvement–

Koyama Takuya, Kino Saiko, Matsuura Yuji

JSAP Annual Meetings Extended Abstracts　2019.1　668-668　2019/02/25
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2019.1.0_668 　

eISSN： 2436-7613
Fabrication of 75-μm-bore hollow optical fibers for infrared transmission

Katsumasa Iwai, Yasuhiro Sasaki, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10872　2019
Publisher: SPIE
DOI： 10.1117/12.2507432 　

ISSN： 1605-7422
Non-invasive blood glucose measurement using quantum cascade lasers

Y. Matsuura, T. Koyama

Proceedings of SPIE - The International Society for Optical Engineering　10926　2019

DOI： 10.1117/12.2506845 　

ISSN： 0277-786X

eISSN： 1996-756X
Multimode-interference-based spatio-spectral encoder for scanner-free endoscopic imaging

Y. Takizawa, T. Katagiri, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10872　2019

DOI： 10.1117/12.2512421 　

ISSN： 1605-7422
Accuracy Improvement of Blood Glucose Measurement System Using Quantum Cascade Lasers Peer-reviewed

Takuya Koyama, Saiko Kino, Yuji Matsuura

Optics and Photonics Journal　09　(10)　155-164　2019
Publisher: Scientific Research Publishing, Inc.
DOI： 10.4236/opj.2019.910014 　

ISSN： 2160-8881

eISSN： 2160-889X
Non-invasive blood glucose measurement by using fast swept-wavelength quantum cascade laser Peer-reviewed

Naoto Shibata, Saiko Kino, Naota Akikusa, Atsushi Sugiyama, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　11140　2019

ISSN： 0277-786X

eISSN： 1996-756X
Non-invasive blood glucose measurement using fixed-wavelength quantum cascade lasers Peer-reviewed

T. Koyama, S. Kino, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10872　2019

DOI： 10.1117/12.2508200 　

ISSN： 1605-7422
Blood glucose measurement based on mid-infrared absorption spectroscopy Peer-reviewed

Yuji Matsuura, Saiko Kino, Takuya Koyama

Proceedings of SPIE - The International Society for Optical Engineering　11140　2019

ISSN： 0277-786X

eISSN： 1996-756X
Non-invasive measurement of blood glucose by attenuated total reflection spectroscopy with fixed-wavelength quantum cascade lasers Peer-reviewed

Takuya Koyama, Saiko Kino, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　11140　2019

ISSN： 0277-786X

eISSN： 1996-756X
Unsupervised calibration for noninvasive glucose-monitoring devices using mid-infrared spectroscopy Peer-reviewed

Kasahara, Ryosuke, Kino, Saiko, Soyama, Shunsuke, Matsuura, Yuji

JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES　11　(6)　2018/11

DOI： 10.1142/S1793545818500384 　

ISSN： 1793-5458

eISSN： 1793-7205
Unsupervised calibration for noninvasive glucose-monitoring devices using mid-infrared spectroscopy Peer-reviewed

Ryosuke Kasahara, Saiko Kino, Shunsuke Soyama, Yuji Matsuura

Journal of Innovative Optical Health Sciences　11　(6)　2018/11/01

DOI： 10.1142/S1793545818500384 　

ISSN： 1793-5458

eISSN： 1793-7205
量子カスケードレーザーを用いた無侵襲血糖値測定 Peer-reviewed

吉岡希利子, 小山卓耶, 木野彩子, 松浦祐司

日本レーザー医学会誌　39　(2)　105-110　2018/07
Publisher: (NPO)日本レーザー医学会
ISSN： 0288-6200

eISSN： 1881-1639
Time-domain terahertz gas spectroscopy using hollow-optical-fiber gas cell Peer-reviewed

Katagiri Takashi, Suzuki Takahiro, Matsuura Yuji

OPTICAL ENGINEERING　57　(5)　2018/05

DOI： 10.1117/1.OE.57.5.054104 　

ISSN： 0091-3286

eISSN： 1560-2303
A feasibility study of photoacoustic detection of hidden dental caries using a fiber-based imaging system Peer-reviewed

Takuya Koyama, Satoko Kakino, Yuji Matsuura

Applied Sciences (Switzerland)　8　(4)　621-631　2018/04/17
Publisher: MDPI AG
DOI： 10.3390/app8040621 　

ISSN： 2076-3417
Infrared hollow optical fiber probe for localized carbon dioxide measurement in respiratory tracts Peer-reviewed

Takashi Katagiri, Kyosuke Shibayama, Takeru Iida, Yuji Matsuura

Sensors (Switzerland)　18　(4)　995-1002　2018/04/01
Publisher: MDPI AG
DOI： 10.3390/s18040995 　

ISSN： 1424-8220
Fabrication of shatter-proof metal hollow-core optical fibers for endoscopic mid-infrared laser applications Peer-reviewed

K. Iwai, H. Takaku, M. Miyagi, Y. Shi, Y. Matsuura

Fibers　6　(2)　24　2018/02

DOI： 10.3390/fib6020024 　
Photoacoustic imaging of hidden dental caries by using a bundle of hollow optical fibers

Takuya Koyama, Satoko Kakino, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10488　2018

DOI： 10.1117/12.2286422 　

ISSN： 1605-7422
Fluorescence endoscopy using fiber speckle illumination

Shuhei Nakano, Takashi Katagiri, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10488　2018

DOI： 10.1117/12.2296330 　

ISSN： 1605-7422
Terahertz gas sensing based on time-domain-spectroscopy using a hollow-optical fiber gas cell

T. Suzuki, T. Katagiri, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10488　2018

DOI： 10.1117/12.2288102 　

ISSN： 1605-7422
Blood glucose measurement with multiple quantum cascade lasers using hollow-optical fiber-based ATR spectroscopy Peer-reviewed

K. Yoshioka, S. Kino, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10488　2018

DOI： 10.1117/12.2288131 　

ISSN： 1605-7422
Transmission properties of dielectric-coated hollow optical fibers based on stainless tube Peer-reviewed

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　10488　1-8　2018
Publisher: SPIE
DOI： 10.1117/12.2286807 　

ISSN： 1605-7422
Noninvasive glucose monitoring using mid-infrared absorption spectroscopy based on a few wavenumbers. International-journal Peer-reviewed

Ryosuke Kasahara, Saiko Kino, Shunsuke Soyama, Yuji Matsuura

Biomedical optics express　9　(1)　289-302　2018/01/01

DOI： 10.1364/BOE.9.000289 　

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A method for performing noninvasive blood glucose measurements was developed. The method is based on mid-infrared absorption spectroscopy and uses only a few wavenumbers to measure blood glucose levels in vivo unconditionally. We found that the regression of blood glucose levels using only three wavenumbers, which were selected using a series cross-validation technique, realized accuracies comparable to those of cases in which a greater number of wavenumbers are used. In addition, we demonstrated the performance of this model through correlations among different types of data.
光ファイバを用いた光音響イメージングによる不顕性う蝕の検出

小山卓耶, 柿野聡子, 松浦祐司

日本レーザー医学会誌　38　(3)　294-294　2017/10
Publisher: (NPO)日本レーザー医学会
ISSN： 0288-6200

eISSN： 1881-1639
量子カスケードレーザを用いた無侵襲血糖測定システムの開発 Peer-reviewed

吉岡希利子, 木野彩子, 松浦祐司

日本レーザー医学会誌　38　(3)　293-293　2017/10
Publisher: (NPO)日本レーザー医学会
ISSN： 0288-6200

eISSN： 1881-1639
Hidden-Dental Caries Detection Using a Photoacoustic Imaging System

Koyama Takuya, Kakino Satoko, Matsuura Yuji

JSAP Annual Meetings Extended Abstracts　2017.2　585-585　2017/08/25
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2017.2.0_585 　

eISSN： 2436-7613
Sensitivity improvement of midinfrared gas sensing system using single-wavelength quantum cascade laser and hollow-waveguide gas cell Peer-reviewed

Takashi Katagiri, Keisuke Yaegashi, Yuji Matsuura

OPTICAL ENGINEERING　56　(8)　080503-080503　2017/08

DOI： 10.1117/1.OE.56.8.080503 　

ISSN： 0091-3286

eISSN： 1560-2303
Sensitivity improvement of optical fiber acoustic probe for all-optical photoacoustic imaging system Peer-reviewed

Atsushi Seki, Katsumasa Iwai, Takashi Katagiri, Yuji Matsuura

APPLIED PHYSICS EXPRESS　10　(7)　072503-072503　2017/07

DOI： 10.7567/APEX.10.072503 　

ISSN： 1882-0778

eISSN： 1882-0786
Multi-capillary based optical sensors for highly sensitive protein detection

Yasuhira Okuyama, Takashi Katagiri, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　10251　2017

DOI： 10.1117/12.2275021 　

ISSN： 0277-786X

eISSN： 1996-756X
Fiber-assisted fluorescence spectral endoscope

Takashi Katagiri, Syuhei Nakano, Yuji Matsuura

Optics InfoBase Conference Papers　Part F78-JSAP 2017　2017
Improvement of transmission properties of visible pilot beam for polymer-coated silver hollow fibers with acrylic silicone resin as buffer layer for sturdy structure Peer-reviewed

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVII　10058　1-8　2017

DOI： 10.1117/12.2249749 　

ISSN： 0277-786X
Photoacoustic Imaging of Hidden Dental Caries by Using a Fiber-Based Probing System

Takuya Koyama, Satoko Kakino, Yuji Matsuura

BIOMEDICAL IMAGING AND SENSING CONFERENCE　10251　2017

DOI： 10.1117/12.2272950 　

ISSN： 0277-786X

eISSN： 1996-756X
Measurement of moisture content of oral mucosa by using optical fiber probe

Yamasawa Kengo, Katagiri Takashi, Watanabe Kenichi, Matsuura Yuji

Transactions of Japanese Society for Medical and Biological Engineering　55　(5)　462-462　2017
Publisher: Japanese Society for Medical and Biological Engineering
DOI： 10.11239/jsmbe.55Annual.462 　

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<p>An optical fiber probe for measurement of water content of oral mucosa is proposed. The probe is composed of silica optical fibers to radiate white light and fibers for detection of diffusely reflected light from the sample. Firstly, by experiment using gelatin film, it is confirmed that the intensity of absorption peak of water at 1450-nm wavelength linearly increases with water content. As a result of in-vivo experiment using human tongue as a sample, it is shown that water content can be measured by the diffuse reflectance detected by the proposed method.</p>
中空光ファイバガスセルを用いた紫外吸収分光による終末呼気分析

平山文香, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2017　234-234　2017
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2017.0_234 　
内視鏡下での熱画像伝送を可能にするバンドル型チューブリーキーファイバ

村上凌生, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2017　236-236　2017
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2017.0_236 　
光学式脈波センサICを用いた歯髄脈波検出

山田悦子, 柿野聡子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2017　235-235　2017
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2017.0_235 　
矩形中空導波路を用いた赤外レーザ光用中空光ファイバカプラ

田村紳, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2017　237-237　2017
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2017.0_237 　
中赤外ATR分光法による全血の血糖値測定の試み

小川貴大, 木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2017　238-238　2017
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2017.0_238 　
Fabrication of bundle-structured tube-leaky optical fibers for infrared thermal imaging Peer-reviewed

T. Kobayashi, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVII　10058　2017

DOI： 10.1117/12.2249663 　

ISSN： 0277-786X
Analysis of propagation properties of terahertz hollow-optical fiber by using time-domain spectroscopy and application for THz wave remote spectroscopy Peer-reviewed

K. Ito, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVII　10058　2017

DOI： 10.1117/12.2249655 　

ISSN： 0277-786X
Ultraviolet spectroscopic breath analysis using hollow-optical fiber as gas cell Peer-reviewed

T. Iwata, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVII　10058　2017

DOI： 10.1117/12.2249662 　

ISSN： 0277-786X
Noninvasive measurement of blood glucose level using mid-infrared quantum cascade lasers Peer-reviewed

Yoshioka, Kiriko, Kino, Saiko, Matsuura, Yuji

BIOMEDICAL IMAGING AND SENSING CONFERENCE　10251　2017

DOI： 10.1117/12.2275006 　

ISSN： 0277-786X

eISSN： 1996-756X
Noninvasive measurement of blood glucose level using mid-infrared quantum cascade lasers Peer-reviewed

Kiriko Yoshioka, Saiko Kino, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　10251　2017

DOI： 10.1117/12.2275006 　

ISSN： 0277-786X

eISSN： 1996-756X
Analysis of transmission properties of terahertz hollow-core optical fiber by using time-domain spectroscopy and application for remote spectroscopy Peer-reviewed

K.Ito, T.Katagiri, Y.Matsuura

J. Opt. Soc. Am. B　34　(1)　2715-2710　2017/01

DOI： 10.1364/JOSAB.34.002715 　

ISSN： 0740-3224

eISSN： 1520-8540
Blood glucose measurement using mid-infrared hollow-optical fiber probe with ATR multi-reflection prism Peer-reviewed

Saiko Kino, Yuji Matsuura

2016 Conference on Lasers and Electro-Optics, CLEO 2016　2016/12/16

DOI： 10.1364/cleo_at.2016.atu1o.2 　
Real-Time Analysis of Isoprene in Breath by Using Ultraviolet-Absorption Spectroscopy with a Hollow Optical Fiber Gas Cell Peer-reviewed

Takuro Iwata, Takashi Katagiri, Yuji Matsuura

SENSORS　16　(12)　2058-2067　2016/12

DOI： 10.3390/s16122058 　

ISSN： 1424-8220
Multi-element hollow-core anti-resonant fiber for infrared thermal imaging Peer-reviewed

Takuya Kobayashi, Takashi Katagiri, Yuji Matsuura

OPTICS EXPRESS　24　(23)　26565-26574　2016/11

DOI： 10.1364/OE.24.026565 　

ISSN： 1094-4087
Detection of photoacoustic signals from blood in dental pulp Peer-reviewed

A. Yamada, S. Kakino, Y. Matsuura

Opt. Photonics J.　6　(9)　229-236　2016/09

DOI： 10.4236/opj.2016.69024 　
Forward-viewing photoacoustic imaging probe with bundled ultra-thin hollow optical fibers Peer-reviewed

A. Seki, K. Iwai, T. Katagiri, Y. Matsuura

JOURNAL OF OPTICS　18　(7)　074015　2016/07

DOI： 10.1088/2040-8978/18/7/074015 　

ISSN： 2040-8978

eISSN： 2040-8986
Hollow optical-fiber based infrared spectroscopy for measurement of blood glucose level by using multi-reflection prism. International-journal Peer-reviewed

Saiko Kino, Suguru Omori, Takashi Katagiri, Yuji Matsuura

Biomedical optics express　7　(2)　701-8　2016/02/01

DOI： 10.1364/BOE.7.000701 　

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A mid-infrared attenuated total reflection (ATR) spectroscopy system employing hollow optical fibers and a trapezoidal multi-reflection ATR prism has been developed to measure blood glucose levels. Using a multi-reflection prism brought about higher sensitivity, and the flat and wide contact surface of the prism resulted in higher measurement reproducibility. An analysis of in vivo measurements of human inner lip mucosa revealed clear signatures of glucose in the difference spectra between ones taken during the fasting state and ones taken after ingestion of glucose solutions. A calibration plot based on the absorption peak at 1155 cm(-1) that originates from the pyranose ring structure of glucose gave measurement errors less than 20%.
Hollow optical-fiber based infrared spectroscopy for measurement of blood glucose level by using multi-reflection prism. International-journal Peer-reviewed

Saiko Kino, Suguru Omori, Takashi Katagiri, Yuji Matsuura

Biomedical optics express　7　(2)　701-8　2016/02/01

DOI： 10.1364/BOE.7.000701 　

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A mid-infrared attenuated total reflection (ATR) spectroscopy system employing hollow optical fibers and a trapezoidal multi-reflection ATR prism has been developed to measure blood glucose levels. Using a multi-reflection prism brought about higher sensitivity, and the flat and wide contact surface of the prism resulted in higher measurement reproducibility. An analysis of in vivo measurements of human inner lip mucosa revealed clear signatures of glucose in the difference spectra between ones taken during the fasting state and ones taken after ingestion of glucose solutions. A calibration plot based on the absorption peak at 1155 cm(-1) that originates from the pyranose ring structure of glucose gave measurement errors less than 20%.
Photoacoustic detection of blood in dental pulp by using short-time Fourier transform Peer-reviewed

Azusa Yamada, Satoko Kakino, Yuji Matsuura

PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2016　9708　2016

DOI： 10.1117/12.2210797 　

ISSN： 0277-786X
Silver hollow optical fibers with acrylic silicone resin coating as buffer layer for sturdy structure Peer-reviewed

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVI　9702　2016

DOI： 10.1117/12.2208314 　

ISSN： 0277-786X
光ファイバプローブを用いた近赤外分光法による粘膜水分量測定の試み

山澤賢悟, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2016　53-53　2016
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2016.0_53 　
光音響法による不顕性う蝕検出の試み

小山卓耶, 山田あずさ, 柿野聡子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2016　182-182　2016
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2016.0_182 　
Photoacoustic imaging by using a bundle of thin hollow-optical fibers Peer-reviewed

A. Seki, K. Iwai, T. Katagiri, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　9702　2016
Publisher: SPIE
DOI： 10.1117/12.2209000 　

ISSN： 1605-7422
Blood glucose measurement in vivo using hollow-fiber based, mid-infrared ATR probe with multi-reflection prism Peer-reviewed

Saiko Kino, Suguru Omori, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVI　9702　2016

DOI： 10.1117/12.2216652 　

ISSN： 0277-786X

eISSN： 1996-756X
Photoacoustic imaging by using a bundle of thin hollow-optical fibers Peer-reviewed

A. Seki, K. Iwai, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XVI　9702　2016

DOI： 10.1117/12.2209000 　

ISSN： 0277-786X
Blood glucose measurement in vivo using hollow-fiber based, mid-infrared ATR probe with multi-reflection prism Peer-reviewed

Saiko Kino, Suguru Omori, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　9702　2016

DOI： 10.1117/12.2216652 　

ISSN： 1605-7422
Optical-fiber-based laser-induced breakdown spectroscopy for detection of early caries Peer-reviewed

Shuhei Sasazawa, Satoko Kakino, Yuji Matsuura

JOURNAL OF BIOMEDICAL OPTICS　20　(6)　065002-1-065002-5　2015/06

DOI： 10.1117/1.JBO.20.6.065002 　

ISSN： 1083-3668

eISSN： 1560-2281
Infrared hollow optical fiber probes for reflectance spectral imaging. International-journal Peer-reviewed

Chenhui Huang, Saiko Kino, Takashi Katagiri, Yuji Matsuura

Applied optics　54　(14)　4602-7　2015/05/10

DOI： 10.1364/AO.54.004602 　

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Systems for infrared reflectance imaging are built with an FT-IR spectrometer, hollow optical fibers, and a high-speed infrared camera. To obtain reflectance images of biological samples, an optical fiber probe equipped with a light source at the distal end and a hybrid fiber probe composed of fibers for beam radiation and ones for image detection have been developed. By using these systems, reflectance spectral images of lipid painted on biomedical hard tissue, which provides reflectance of around 4%, are successfully acquired.
Improvement of transmission properties for a rugged polymer-coated silver hollow fiber Peer-reviewed

Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XV　9317　2015

DOI： 10.1117/12.2076337 　

ISSN： 0277-786X
Detection of early caries by laser-induced breakdown spectroscopy

Shuhei Sasazawa, Satoko Kakino, Yuji Matsuura

CLINICAL AND BIOMEDICAL SPECTROSCOPY AND IMAGING IV　9537　2015

DOI： 10.1117/12.2183056 　

ISSN： 0277-786X

eISSN： 1996-756X
テラヘルツ波用中空ファイバの伝搬モード特性－時間領域分光法による評価－

伊藤公聖, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2015　69-69　2015
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2015.0_69 　
高輝度紫外光源と中空光ファイバガスセルを用いた紫外ガス吸収分光システムのSN比改善

岩田卓朗, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2015　74-74　2015
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2015.0_74 　
バンドル型チューブリーキーファイバの製作と赤外イメージ伝送

小林拓矢, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2015　71-71　2015
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2015.0_71 　
赤外量子カスケードレーザと中空光ファイバガスセルを用いたガス分光分析システムの高感度化

八重樫佳祐, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2015　73-73　2015
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2015.0_73 　
気道内CO₂分光分析のための光ファイバプローブの研究

飯田猛, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2015　68-68　2015
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2015.0_68 　
Fiber-optic direct Raman imaging system based on a hollow-core fiber bundle Peer-reviewed

S. Inoue, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XV　9317　2015

DOI： 10.1117/12.2078662 　

ISSN： 0277-786X
中空光ファイバガスセルを用いた呼気分析のための紫外ガス吸収分光 Peer-reviewed

出仙勇毅, 片桐崇史, 松浦祐司

レーザー研究　42　(12)　929-932　2014/12/01
Publisher:
ISSN： 0387-0200
Breath analysis system using quantum cascade laser and hollow-fiber gas cell

Suzuki Hibiki, Kino Saiko, Matsuura Yuji

JSAP Annual Meetings Extended Abstracts　2014.2　543-543　2014/09/01
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2014.2.0_543 　

eISSN： 2436-7613
Improvement of mechanical strength of polymer-coated, hollow-optical fiber for FT-IR remote spectroscopy Peer-reviewed

K. Iwai, Y. Matsuura, M. Miyagi, H. Takaku, T. Katagiri, Y. W. Shi

Optics InfoBase Conference Papers　2014/07/21
Publisher: OSA - The Optical Society
DOI： 10.1364/APOS.2016.Th4A.56 　
Measurement of blood glucose level by using mid-infrared hollow-optical fiber probe with ATR multi-reflection prism Peer-reviewed

Saiko Kino, Yuji Matsuura

Optics InfoBase Conference Papers　2014/07/21

DOI： 10.1364/APOS.2016.W1A.3 　
Blood glucose measurement by using hollow optical fiber-based attenuated total reflection probe. International-journal Peer-reviewed

Saiko Kino, Yuki Tanaka, Yuji Matsuura

Journal of biomedical optics　19　(5)　057010-057010　2014/05

DOI： 10.1117/1.JBO.19.5.057010 　

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A noninvasive glucose monitoring system based on mid-infrared, attenuated total reflection spectroscopy using a hollow optical fiber probe is developed. Owing to the flexible fiber probe, measurement of oral mucosa, where blood capillaries are near the skin surface, is possible. Blood glucose levels are measured by detecting the peak intensity of glucose absorption bands, and the experimental results showed that the reproducibility of the measurement is high enough for monitoring blood glucose.
Microstructured Tube-Leaky Glass Waveguide for Delivery of High-Powered Er:Yag Laser Peer-reviewed

Shun Kobayashi, Takashi Katagiri, Yuji Matsuura

JOURNAL OF LIGHTWAVE TECHNOLOGY　32　(5)　986-990　2014/03

DOI： 10.1109/JLT.2013.2295838 　

ISSN： 0733-8724

eISSN： 1558-2213
Hollow fiber based SERS probe for analysis of biological molecules

M. Nagaoka, T. Katagiri, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　8938　2014

DOI： 10.1117/12.2039185 　

ISSN： 1605-7422
Observation of artherosclerosis by photoacoustic microscopy

Sato Mika, Yamazaki Rena, Koide Masashi, Hagiwara Yoshihiro, Matsuura Yuji, Kobayashi Kazuto, Saijo Yoshifumi

BME　52　O-449-O-450　2014
Publisher: Japanese Society for Medical and Biological Engineering
DOI： 10.11239/jsmbe.52.O-449 　

ISSN： 1347-443X

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Photoacoustic (PA) imaging is a non-invasive diagnostic approach using PA effect. This study is performed to develop OR-PAM system and to image the sample of arteriosclerosis of the rat by using developed OR-PAM system and investigated the usability of PA imaging in histopathologic examination. As a result, red blood cells which caused the thrombus existed in the atheroma in the sample. In the present study, we developed OR-PAM system and visualized the atheroma with thrombus in the sample of arteriosclerosis of the rat by using developed OR-PAM system. Thus, PA imaging using OR-PAM has usability for histopathologic examination of arteriosclerosis.
Fabrication of 50-mu m-bore hollow fiber for infrared transmission Peer-reviewed

Katsumasa Iwai, Kouki Takahashi, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIV　8938　2014

DOI： 10.1117/12.2036666 　

ISSN： 0277-786X
Large-core Tube-leaky Waveguide for Delivery of High-Powered Er: YAG Laser Peer-reviewed

S. Kobayashi, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIV　8938　2014

DOI： 10.1117/12.2037467 　

ISSN： 0277-786X
Spectral broadening and temporal compression of similar to 100 fs pulses in air-filled hollow core capillary fibers Peer-reviewed

C. Li, K. P. M. Rishad, P. Horak, Y. Matsuura, D. Faccio

OPTICS EXPRESS　22　(1)　1143-1151　2014/01

DOI： 10.1364/OE.22.001143 　

ISSN： 1094-4087
Optical measurement of blood oxygen saturation of dental pulp Peer-reviewed

S. Kakino, S. Kushibiki, A. Yamada, Z Miwa, Y. Takagi, Y. Matsuura

ISRN Biomedical Engineering　2013　(502869)　502869-1-502869-6　2013/11
Publisher:
DOI： 10.1155/2013/502869 　

eISSN： 2314-6346
Hollow-Optical-Fiber-Based Laser-Induced Breakdown Spectroscopy System and Its Use in Soil Salinity Measurements Peer-reviewed

Ryusuke Seki, Takashi Katagiri, Yuji Matsuura

APPLIED PHYSICS EXPRESS　6　(10)　102402-1-102402-3　2013/10

DOI： 10.7567/APEX.6.102402 　

ISSN： 1882-0778

eISSN： 1882-0786
Fabrication of low-loss hollow waveguide with multiple dielectric layers for infrared cavity ring-down spectroscopy Peer-reviewed

Ryo Ichikawa, Takashi Katagiri, Yuji Matsuura

OPTICAL ENGINEERING　52　(10)　106104-1-106104-5　2013/10

DOI： 10.1117/1.OE.52.10.106104 　

ISSN： 0091-3286

eISSN： 1560-2303
中空光ファイバを用いた光バイオプシーシステム Peer-reviewed

松浦祐司

光アライアンス　24　(9)　20-24　2013/09
Publisher:
ISSN： 0917-026X
All-optical photoacoustic imaging system using fiber ultrasound probe and hollow optical fiber bundle Peer-reviewed

Yusuke Miida, Yuji Matsuura

OPTICS EXPRESS　21　(19)　22023-22033　2013/09

DOI： 10.1364/OE.21.022023 　

ISSN： 1094-4087
光ファイバを用いた表面プラズモン共鳴屈折率センサ Peer-reviewed

馬麟, 片桐崇史, 松浦祐司

Laser Original　41　(5)　342-346　2013/05
全光学式光音響計測用光ファイバプローブ Peer-reviewed

三井田佑輔, 松浦祐司

日本レーザー医学会誌　34.　(1)　14-18　2013/04

DOI： 10.2530/jslsm.34.14 　
中空光ファイバガスセルを用いた赤外分光ガス分析システム -量子カスケードレーザ導入の試み-

鈴木響, 木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2013　284-284　2013
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2013.0_284 　
ヨウ化銀内装中空光ファイバを用いた赤外ATR分光測定

大森優, 木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2013　283-283　2013
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2013.0_283 　
Infrared tube-leaky optical fibers with microstructured glass supports

Shun Kobayashi, Takashi Katagiri, Yuji Matsuura

Optical Fiber Communication Conference, OFC 2013　2013

DOI： 10.1364/nfoec.2013.jw2a.14 　
Infrared tube-leaky optical fibers with microstructured glass supports

Shun Kobayashi, Takashi Katagiri, Yuji Matsuura

2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, OFC/NFOEC 2013　2013
Infrared tube-leaky optical fibers with microstructured glass supports

Shun Kobayashi, Takashi Katagiri, Yuji Matsuura

National Fiber Optic Engineers Conference, NFOEC 2013　2013
Fabrication of a rugged polymer-coated silver hollow fiber with a vitreous film for the infrared Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIII　8576　2013

DOI： 10.1117/12.2002364 　

ISSN： 0277-786X
Hollow waveguide with multiple dielectric layer for infrared cavity-ring-down spectroscopy Peer-reviewed

R. Ichikawa, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIII　8576　2013

DOI： 10.1117/12.2008272 　

ISSN： 0277-786X
Design and optimization of hollow-optical-fiber gas cell for infrared spectroscopy Peer-reviewed

Yusuke Takahashi, Saiko Kino, Takashi Katagiri, Yuji Matsuura

Optical Engineering　52　(1)　013601-1-013601-5　2013

DOI： 10.1117/1.OE.52.1.013601 　

ISSN： 0091-3286

eISSN： 1560-2303
Fabrication method of small-diameter hollow waveguides for terahertz waves Peer-reviewed

Shunsuke Sato, Takashi Katagiri, Yuji Matsuura

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　29　(11)　3006-3009　2012/11

DOI： 10.1364/JOSAB.29.003006 　

ISSN： 0740-3224
Remote Fourier transform-infrared spectral imaging system with hollow-optical fiber bundle. International-journal Peer-reviewed

Chenhui Huang, Saiko Kino, Takashi Katagiri, Yuji Matsuura

Applied optics　51　(29)　6913-6　2012/10/10

DOI： 10.1364/AO.51.006913 　

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A spectral imaging system consisting of a Fourier transform-infrared spectrometer, a high-speed infrared camera, and a bundle of hollow-optical fibers transmitting infrared radiation images was constructed. Infrared transmission spectra were obtained by carefully processing multiple interferograms taken by high-speed photography. Infrared spectral images of a variety of samples captured by the system were measured. We successfully detected existence maps of the oil and fat of biological samples by mapping the transmission of specific wavelengths in the spectrum.
Development of a Flexible Fiber Surface-Enhanced Raman Scattering (SERS) Probe Using a Hollow Optical Fiber and Gold Nanoparticles Peer-reviewed

Toshiaki Suzuki, Yasutaka Kitahama, Yuji Matsuura, Yukihiro Ozaki, Hidetoshi Sato

APPLIED SPECTROSCOPY　66　(9)　1022-1026　2012/09

DOI： 10.1366/11-06548 　

ISSN： 0003-7028

eISSN： 1943-3530
ブラッグファイバーを用いた表面プラズモン共鳴屈折率センサー Peer-reviewed

馬麟, 片桐崇史, 松浦祐司

光学　41　(7)　376-380　2012/07/01
Publisher:
ISSN： 0389-6625
中空光ファイバを用いたSERSプローブの製作と評価

永岡正浩, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2012　163-163　2012
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2012.0_163 　
誘電体薄膜で構成された中空光ファイババンドル

小林駿, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2012　164-164　2012
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2012.0_164 　
Uniform polymer-film formation in 100-mu m-bore hollow fiber for Er:YAG laser transmission Peer-reviewed

Katsumasa Iwai, Masanao Suzuki, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XII　8218　2012

DOI： 10.1117/12.905925 　

ISSN： 0277-786X
Design and fabrication of hollow fiber-based Raman tweezers for bioparticle measurement Peer-reviewed

Y. Morisaki, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XII　8218　2012

DOI： 10.1117/12.912046 　

ISSN： 0277-786X
Infrared spectral imaging by hollow-optical fiber bundle Peer-reviewed

Chenhui Huang, Saiko Kino, Takashi Katagiri, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XII　8218　2012

DOI： 10.1117/12.912195 　

ISSN： 0277-786X

eISSN： 1996-756X
Raman spectral imaging using hollow flexible fiber bundles Peer-reviewed

T. Tomiyama, T. Katagiri, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XII　8218　2012

DOI： 10.1117/12.912047 　

ISSN： 0277-786X
Investigation of tapered silver/silver halide coated hollow glass waveguides for the transmission of CO2 laser radiation Peer-reviewed

Carlos M. Bledt, Daniel V. Kopp, James A. Harrington, Saiko Kino, Yuji Matsuura, Jason M. Kriesel

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XII　8218　2012

DOI： 10.1117/12.912201 　

ISSN： 0277-786X

eISSN： 1996-756X
Transfer capability of 3-5 mu m radiation by hollow glass waveguide Peer-reviewed

Michal Nemec, Helena Jelinkova, Mitsunobu Miyagi, Hiroyuki Takaku, Katsumasa Iwai, Yuji Matsuura, Maxim Doroshenko

LASER SOURCES AND APPLICATIONS　8433　2012

DOI： 10.1117/12.921525 　

ISSN： 0277-786X
Investigation of tapered silver / silver halide coated hollow glass waveguides for the transmission of CO <inf>2</inf> laser radiation Peer-reviewed

Carlos M. Bledt, Daniel V. Kopp, James A. Harrington, Saiko Kino, Yuji Matsuura, Jason M. Kriesel

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　8218　2012

DOI： 10.1117/12.912201 　

ISSN： 1605-7422
Infrared spectral imaging by hollow-optical fiber bundle Peer-reviewed

Chenhui Huang, Saiko Kino, Takashi Katagiri, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　8218　2012

DOI： 10.1117/12.912195 　

ISSN： 1605-7422
Color Dependence of Photoacoustic Micro Imaging Peer-reviewed

Saijo Yoshifumi, Koike Hideyuki, Izumi Takuya, Miida Yusuke, Matsuura Yuji, Hozumi Naohiro

ACOUSTICAL IMAGING, VOL 31　31　323-329　2012

DOI： 10.1007/978-94-007-2619-2_31 　

ISSN： 0270-5117
Infrared Spectral Measurement of Saline Concentration Using Attenuated-Total-Reflection Probe Based on Hollow Optical Fiber Peer-reviewed

TANAKA Yuki, KINO Saiko, MATSUURA Yuji

The Review of Laser Engineering　39　(12)　938-941　2011/12/15
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.39.938 　

ISSN： 0387-0200

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An infrared spectroscopy system based on hollow-optical fiber probes for the measurement of NaCl
Noninvasive Subsurface Analysis Using Multiple Miniaturized Raman Probes, Part I: Basic Study of Thin-Layered Transparent Models of Biomedical Tissues Peer-reviewed

Yuko S. Yamamoto, Hideyuki Shinzawa, Yuji Matsuura, Yukihiro Ozaki, Hidetoshi Sato

APPLIED SPECTROSCOPY　65　(8)　844-848　2011/08

DOI： 10.1366/11-06245 　

ISSN： 0003-7028

eISSN： 1943-3530
Hollow fiber-based Raman tweezers

T. Katagiri, Y. Morisaki, Y. Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　7894　2011

DOI： 10.1117/12.876020 　

ISSN： 1605-7422
Fabrication of silver-coated hollow fiber with an inner diameter of 100 mu m or less Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS, SENSORS, AND DEVICES FOR BIOMEDICAL DIAGNOSTICS AND TREATMENT XI　7894　2011

DOI： 10.1117/12.874087 　

ISSN： 0277-786X
Color-dependent photoacoustic effect for biomedical functional imaging Peer-reviewed

Yoshifumi Saijo, Hideyuki Koike, Takuya Izumi, Yusuke Miida, Yuji Matsuura, Naohiro Hozumi

Proceedings of Forum Acusticum　45-48　2011

ISSN： 2221-3767
中空光ファイバを用いたレーザブレイクダウン分光法によるナトリウムの水溶液濃度測定

関竜介, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　291-291　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_291 　
Er:YAGレーザ誘起液体ジェット高圧力化の検討

小村祐司, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　290-290　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_290 　
光ファイバを用いたレーザ誘起超音波顕微鏡に関する基礎的研究

三井田佑輔, 小池秀幸, 西條芳文, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　296-296　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_296 　
パルスオキシメトリによる歯髄内動脈血の酸素飽和度測定－光学系の最適化による測定感度向上－

砂田崇宏, 柿野聡子, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　294-294　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_294 　
赤外キャビティリングダウン分光用中空光導波路ガスセルの製作

市川遼, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　295-295　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_295 　
赤外分光用中空光ファイバプローブを用いた塩分濃度検出

田中雄樹, 木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2011　289-289　2011
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2011.0_289 　
Small-volume cavity cell using hollow optical fiber for Raman scattering-based gas detection Peer-reviewed

Y. Okita, T. Katagiri, Y. Matsuura

OPTICAL FIBERS, SENSORS, AND DEVICES FOR BIOMEDICAL DIAGNOSTICS AND TREATMENT XI　7894　2011

DOI： 10.1117/12.874828 　

ISSN： 0277-786X
Flexible hollow optical fiber bundle for infrared thermal imaging Peer-reviewed

Yuji Matsuura, Keisuke Naito

Biomedical Optics Express　2　(1)　65-70　2011/01/01
Publisher: OSA - The Optical Society
DOI： 10.1364/BOE.2.000065 　

ISSN： 2156-7085
Synchronous radiation with Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues Peer-reviewed

Tomonori Watanabe, Katsumasa Iwai, Takashi Katagiri, Yuji Matsuura

Biomedical Optics Express　1　(2)　337-346　2010/09/01
Publisher: OSA - The Optical Society
DOI： 10.1364/BOE.1.000337 　

ISSN： 2156-7085

eISSN： 2156-7085
Endoscopic optical diagnosis and surgery system based on hollow optical fiber Peer-reviewed

Y. Matsuura, T. Watanabe, S. Kino

Technical Digest - 15th OptoElectronics and Communications Conference, OECC2010　798-799　2010
Transmission properties of dielectric-coated hollow optical fibers based on silver-cladding-stainless pipe Peer-reviewed

Katsumasa Iwai, Akihito Hongo, Hiroyuki Takaku, Mitsunobu Miyagi, Junichi Ishiyama, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS X　7559　2010

DOI： 10.1117/12.840581 　

ISSN： 0277-786X
Remote-Raman spectroscopy of optically trapped particles by utilizing a hollow optical fiber Peer-reviewed

T. Katagiri, Y. Morisaki, Y. Matsuura

OPTICAL TRAPPING AND OPTICAL MICROMANIPULATION VII　7762　2010

DOI： 10.1117/12.864537 　

ISSN： 0277-786X
Hollow waveguide for urology treatment Peer-reviewed

H. Jelinkova, M. Nemec, P. Koranda, J. Pokorny, O. Kohler, P. Drlik, M. Miyagi, K. Iwai, Y. Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS X　7559　2010

DOI： 10.1117/12.840916 　

ISSN： 0277-786X
中空光ファイバ型ガスセルを用いた赤外ガス分光分析 Peer-reviewed

高橋侑右, 木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2010　(0)　64-64　2010
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2010.0_64 　
Fabrication and transmission characteristics of infrared hollow fiber based on silver-clad stainless steel pipes

Katsumasa Iwai, Akihito Hongo, Hiroyuki Takaku, I. Mitsunobu Miyagi, Jun-Ichi Ishiyama, Xiao-Xu Wu, Yi-Wei Shi, Yuji Matsuura

Applied Optics　48　(32)　6207-6212　2009/11/10
Publisher: OSA - The Optical Society
DOI： 10.1364/AO.48.006207 　

ISSN： 1539-4522 1559-128X
Hollow-fiber-based flexible probe for remote measurement of infrared attenuated total reflection. International-journal Peer-reviewed

Yuji Matsuura, Saiko Kino, Takashi Katagiri

Applied optics　48　(28)　5396-400　2009/10/01

DOI： 10.1364/AO.48.005396 　

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A hollow optical-fiber probe for infrared attenuated total reflection (ATR) spectroscopy is developed. A newly designed ATR prism, optimized for use with hollow optical fibers, is proposed. Results from preliminary experiments show the potential uses of the probe in clinical applications. The probe is appropriate for in vivo applications because it is consists of only nontoxic and chemically durable materials.
Transmission characteristics of terahertz hollow fiber with an absorptive dielectric inner-coating film Peer-reviewed

Xiao-Li Tang, Yi-Wei Shi, Yuji Matsuura, Katsumasa Iwai, Mitsunobu Miyagi

OPTICS LETTERS　34　(14)　2231-2233　2009/07

DOI： 10.1364/OL.34.002231 　

ISSN： 0146-9592

eISSN： 1539-4794
Raman study of brain functions in live mice and rats: A pilot study Peer-reviewed

Hidetoshi Sato, Yuko S. Yamamoto, Atsushi Maruyama, Takashi Katagiri, Yuji Matsuura, Yukihiro Ozaki

VIBRATIONAL SPECTROSCOPY　50　(1)　125-130　2009/05

DOI： 10.1016/j.vibspec.2008.09.012 　

ISSN： 0924-2031
Surface-plasmon resonance sensor using silica-core Bragg fiber Peer-reviewed

Lin Ma, Takashi Katagiri, Yuji Matsuura

OPTICS LETTERS　34　(7)　1069-1071　2009/04

DOI： 10.1364/OL.34.001069 　

ISSN： 0146-9592

eISSN： 1539-4794
Optical Characterization of a Hollow Fiber Raman Probe toward Non-Invasive Measurements of Living Tissues Peer-reviewed

Hiroki Mitsuoka, Shin-ichi Morita, Toshiaki Suzuki, Yuji Matsuura, Yukiteru Katsumoto, Hidetoshi Sato

APPLIED PHYSICS EXPRESS　2　(2)　027001-1-027001-3　2009/02

DOI： 10.1143/APEX.2.027001 　

ISSN： 1882-0778
Noninvasive subsurface analyzing technique using multiple miniaturized Raman probes Peer-reviewed

Yuko S. Yamamoto, Yuichi Komachi, Hideyuki Shinzawa, Atsushi Maruyama, Bibin B. Andriana, Yuji Matsuura, Yukihiro Ozaki, Hidetoshi Sato

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS IX　7173　71730　2009

DOI： 10.1117/12.809346 　

ISSN： 0277-786X

eISSN： 1996-756X
Simultaneous irradiation of Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues Peer-reviewed

Tomonori Watanabe, Katsumasa Iwai, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS IX　7173　2009

DOI： 10.1117/12.807910 　

ISSN： 0277-786X
Flexible ATR probe for endoscopic FT-IR measurement using hollow optical fiber Peer-reviewed

Yuji Matsuura, Saiko Kino

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　7368　2009

DOI： 10.1117/12.831600 　

ISSN： 1605-7422
Flexible ATR Probe for Endoscopic FT-IR Measurement Using Hollow Optical Fiber Peer-reviewed

Yuji Matsuura, Saiko Kino

CLINICAL AND BIOMEDICAL SPECTROSCOPY　7368　2009

DOI： 10.1117/12.831600 　

ISSN： 0277-786X
250 mu m Inner Diameter Hollow Waveguide for Er:YAG Laser Radiation Peer-reviewed

Michal Nemec, Helena Jelinkova, Mitsunobu Miyagi, Katsumasa Iwai, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS IX　7173　2009

DOI： 10.1117/12.808097 　

ISSN： 0277-786X
The effect of dielectric absorption on the transmission characteristics of terahertz hollow fibers Peer-reviewed

Xiao-Li Tang, Yi-Wei Shi, Yuji Matsuura, Katsumasa Iwai, Mitsunobu Miyagi

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS IX　7173　2009

DOI： 10.1117/12.808356 　

ISSN： 0277-786X
Fabrication of hollow optical fiber with a vitreous film for CO2 laser light delivery Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS IX　7173　2009

DOI： 10.1117/12.807602 　

ISSN： 0277-786X
Comparison of Ho:YAG and Er:YAG lasers for lithotripsy Peer-reviewed

Helena Jelinkova, Oto Kohler, Mitsunobu Miyagi, Petr Koranda, Michal Nemec, Jan Sulc, Martin Fibrich, Jan Pokorny, Katsumasa Iwai, Yuji Matsuura

PHOTONIC THERAPEUTICS AND DIAGNOSTICS V　7161　2009

DOI： 10.1117/12.808667 　

ISSN： 0277-786X
中空光ファイバ型赤外ATRプローブを用いた動脈内コレステロール測定 Peer-reviewed

木野彩子, 片桐崇史, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2009　(0)　120-120　2009
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2009.0_120 　
An optical biopsy system with miniaturized Raman and spectral imaging probes; in vivo animal and ex vivo clinical application studies Peer-reviewed

Sato Hidetoshi, Suzuki Toshiaki, Andriana Bibin B, Morita Shin'ichi, Maruyama Atsushi, Shinzawa Hideyuki, Komachi Yuichi, Kanai Gen'ichi, Ura Nobuo, Masutani Koji, Matsuura Yuji, Toi Masakazu, Shimosegawa Toru, Ozaki Yukihiro

ADVANCED BIOMEDICAL AND CLINICAL DIAGNOSTIC SYSTEMS VII　7169　2009

DOI： 10.1117/12.809271 　

ISSN： 0277-786X
High Axial Resolution Raman Probe made of a Single Hollow Optical Fiber Peer-reviewed

Takashi Katagiri, Yuko S. Yamamoto, Yukihiro Ozaki, Yuji Matsuura, Hidetoshi Sato

APPLIED SPECTROSCOPY　63　(1)　103-107　2009/01

DOI： 10.1366/000370209787169650 　

ISSN： 0003-7028
Hollow optical fibers loaded with an inner dielectric film for terahertz broadband spectroscopy Peer-reviewed

Yuji Matsuura, Eriko Takeda

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　25　(12)　1949-1954　2008/12

DOI： 10.1364/JOSAB.25.001949 　

ISSN： 0740-3224
内視鏡治療・診断のための中空光ファイバ技術

松浦祐司

日本コンピュータ外科学会誌　10　(3)　208-208　2008/11
Bragg Fiber Taper for Subwavelength Beam Generation Peer-reviewed

Lin Ma, Yuji Matsuura

JOURNAL OF LIGHTWAVE TECHNOLOGY　26　(21-24)　3847-3852　2008/11

DOI： 10.1109/JLT.2008.927796 　

ISSN： 0733-8724
Raman imaging of carious lesions using a hollow optical fiber probe Peer-reviewed

Eriko Yokoyama, Satoko Kakino, Yuji Matsuura

APPLIED OPTICS　47　(23)　4227-4230　2008/08

DOI： 10.1364/AO.47.004227 　

ISSN： 1559-128X

eISSN： 2155-3165
Subsurface sensing of biomedical tissues using a miniaturized Raman probe: Study of thin-layered model samples Peer-reviewed

Yuko S. Yamamoto, Yusuke Oshima, Hideyuki Shinzawa, Takashi Katagiri, Yuji Matsuura, Yukihiro Ozaki, Hidetoshi Sato

ANALYTICA CHIMICA ACTA　619　(1)　8-13　2008/06

DOI： 10.1016/j.aca.2008.02.027 　

ISSN： 0003-2670
Application study of the optical biopsy system for small experimental animals Peer-reviewed

Hidetoshi Sato, Toshiaki Suzuki, Shin-ichi Morita, Atsushi Maruyama, Toru Shimosegawa, Yuji Matsuura, Gen'ichi Kanai, Nobuo Ura, Koji Masutani, Yukihiro Ozaki

Biomedical Optical Spectroscopy　2008/02/07
Publisher: SPIE
DOI： 10.1117/12.764729 　
Flexible bundled hollow fiber used in the transmission of thermal infrared image Peer-reviewed

Shi Yi-Wei, Zhu Xiao-Song, Yuji Matsuura, Mitsunobu Miyagi

JOURNAL OF INFRARED AND MILLIMETER WAVES　27　(1)　12-15　2008/02

ISSN： 1001-9014
Thin hollow glass waveguide for near IR radiation delivery Peer-reviewed

Michal Nemec, Helena Jelinkova, Jan Sulc, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VIII　6852　2008

DOI： 10.1117/12.761837 　

ISSN： 0277-786X
Lasers for Lithotripsy Peer-reviewed

Petr Koranda, Michal Nemec, Helena Jelinkova, Jan Pokorny, Oto Kohler, Pavel Drlik, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

PHOTONICS, DEVICES, AND SYSTEMS IV　7138　2008

DOI： 10.1117/12.817985 　

ISSN： 0277-786X
Dual-wavelength laser irradiation through hollow optical fiber for hard tissue ablation Peer-reviewed

Tomonori Watanabe, Katsumasa Iwai, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VIII　6852　2008

DOI： 10.1117/12.761421 　

ISSN： 0277-786X
Nd : YAG laser systems with radiation delivery by thin hollow waveguides Peer-reviewed

Michal Nemec, Helena Jelinkova, Jan Sulc, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

SOLID STATE LASERS AND AMPLIFIERS III　6998　2008

DOI： 10.1117/12.780429 　

ISSN： 0277-786X

eISSN： 1996-756X
Fabrication of 100-mu m-bore hollow fiber for infrared transmission Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VIII　6852　2008

DOI： 10.1117/12.767934 　

ISSN： 0277-786X
生体内赤外分光測定用中空光ファイバ型ATRプローブ Peer-reviewed

木野彩子, 松浦祐司

電気関係学会東北支部連合大会講演論文集　2008　(0)　176-176　2008
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2008.0_176 　
Infrared hollow fiber with a vitreous film as the dielectric inner coating layer Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura

Optics Letters　32　(23)　3420-3422　2007/12/01

DOI： 10.1364/OL.32.003420 　

ISSN： 0146-9592
Nontoxic and chemically stable hollow optical fiber probe for fourier transform infrared spectroscopy. International-journal Peer-reviewed

Saiko Kino, Yuji Matsuura

Applied spectroscopy　61　(12)　1334-7　2007/12

DOI： 10.1366/000370207783292208 　

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Remote spectroscopy systems based on hollow optical fiber probes are proposed and experimental results using a Fourier transform spectroscope are presented. A hollow optical-fiber probe with a silver and polymer inner coating is used to deliver incoherent light to a target and another separate hollow fiber is used to collect the reflected light. The reflectance spectra of teeth, skin, and oral mucosa were successfully measured with the probe even from surfaces with reflectances lower than 0.5%. The preliminary results obtained using attenuated total reflection spectroscopy are also presented. This remote infrared spectroscope is useful for endoscopic measurements inside the body because it is flexible, durable, nontoxic, and has the low transmission losses associated with hollow-fiber-based probes.
Improved coating method for uniform polymer layer in infrared hollow fiber Peer-reviewed

Katsumasa Iwai, Yi-Wei Shi, Mitsunobu Miyagi, Yuji Matsuura

OPTICS AND LASER TECHNOLOGY　39　(8)　1528-1531　2007/11

DOI： 10.1016/j.optlastec.2007.01.001 　

ISSN： 0030-3992
Free-running and Q-switched Er : YAG laser dental cavity and composite resin restoration Peer-reviewed

H. Jelinkova, T. Dostalova, M. Nemec, P. Koranda, M. Miyagi, K. Iwai, Y. -W. Shi, Y. Matsuura

LASER PHYSICS LETTERS　4　(11)　835-839　2007/11

DOI： 10.1002/lapl.200710062 　

ISSN： 1612-2011

eISSN： 1612-202X
Flexible fiber-optics probes for Raman and FT-IR remote spectroscopy Invited Peer-reviewed

Yuji Matsuura, Saiko Kino, Eriko Yokoyama, Takashi Katagiri, Hidetoshi Sato, Hideo Tashiro

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS　13　(6)　1704-1708　2007/11

DOI： 10.1109/JSTQE.2007.910111 　

ISSN： 1077-260X
Mid-infrared radiation spatial profile delivered by COP/Ag hollow glass waveguide Peer-reviewed

M. Nemec, H. Jelinkova, M. Fibrich, P. Koranda, M. Miyagi, K. Iwai, Y-W. Shi, Y. Matsuura

LASER PHYSICS LETTERS　4　(10)　761-767　2007/10

DOI： 10.1002/lapl.200710057 　

ISSN： 1612-2011

eISSN： 1612-202X
Flexible terahertz fiber optics with low bend-induced losses Peer-reviewed

Takahiro Ito, Yuji Matsuura, Mitsunobu Miyagi, Hiroaki Minarnide, Hiromasa Ito

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　24　(5)　1230-1235　2007/05

DOI： 10.1364/JOSAB.24.001230 　

ISSN： 0740-3224
Tapered hollow waveguide for focusing infrared laser beams Peer-reviewed

Satoshi Narita, Yuji Matsuura, Mitsunobu Miyagi

OPTICS LETTERS　32　(8)　930-932　2007/04

DOI： 10.1364/OL.32.000930 　

ISSN： 0146-9592
Hollow fiber optics with improved durability for high-peak-power pulses of Q-switched Nd : YAG lasers Peer-reviewed

Yuji Matsuura, Akio Tsuchiuchi, Hiroshi Noguchi, Mitsunobu Miyagi

APPLIED OPTICS　46　(8)　1279-1282　2007/03

DOI： 10.1364/AO.46.001279 　

ISSN： 1559-128X

eISSN： 2155-3165
Transmission properties of infrared hollow fibers produced by drawing a glass-tube preform Peer-reviewed

Ryosuke Kasahara, Yuji Matsuura, Takashi Katagiri, Mitsunobu Miyagi

OPTICAL ENGINEERING　46　(2)　025001-1-025001-5　2007/02

DOI： 10.1117/1.2710186 　

ISSN： 0091-3286
Flexible hollow polycarbonate fiber for endoscopic infrared laser treatment

Masayuki Nakazawa, Yi-Wei Shi, Katsumasa Iwai, Yuji Matsuura, Xiao-Song Zhu, Mitsunobu Miyagi

Optics InfoBase Conference Papers　2007
Publisher: Optical Society of America
ISSN： 2162-2701
Submicron-diameter silica taper with a Bragg multilayer structure-observation for TE01 and HE11 mode guidance

Lin Ma, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　6781　2007

DOI： 10.1117/12.745762 　

ISSN： 0277-786X
Flexible hollow polycarbonate fiber for endoscopic infrared laser treatment

Masayuki Nakazawa, Yi-Wei Shi, Katsumasa Iwai, Yuji Matsuura, Xiao-Song Zhu, Mitsunobu Miyagi

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6631　2007

ISSN： 1605-7422
Hollow fiber-optic Raman probes for small experimental animals

Takashi Katagiri, Yusuke Hattori, Toshiaki Suzuki, Yuji Matsuura, Hidetoshi Sato

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6433　2007

DOI： 10.1117/12.702664 　

ISSN： 1605-7422
Characterization of delivered mid-infrared radiation spatial profile by hollow waveguide Peer-reviewed

M. Němec, H. Jelínková, M. Fibrich, P. Koranda, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Conference on Lasers and Electro-Optics Europe - Technical Digest　2007

DOI： 10.1109/CLEOE-IQEC.2007.4386494 　
Er : YAG laser micro-preparation of hard dental tissue Peer-reviewed

Tat'jana Dostalova, Helena Jelinkova, Michal Nemec, Petr Koranda, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

LASERS IN DENTISTRY XIII　6425　2007

DOI： 10.1117/12.698148 　

ISSN： 0277-786X

eISSN： 1996-756X
Remote FTIR reflectometry for clinical diagnostic using hollow optical-fiber probe Peer-reviewed

Yuji Matsuura, Saiko Kino

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6433　2007

DOI： 10.1117/12.716791 　

ISSN： 1605-7422
Simultaneous delivery of Er : YAG and Ho : YAG lasers by using a hollow optical fibers for endoscopic lithotripsy Peer-reviewed

Katsumasa Iwai, Yuji Matsuura, Mitsunobu Miyagi

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VII　6433　2007

DOI： 10.1117/12.699794 　

ISSN： 0277-786X
Remote FTIR reflectometry for clinical diagnostic using hollow optical-fiber probe Peer-reviewed

Yuji Matsuura, Saiko Kino

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VII　6433　2007

DOI： 10.1117/12.716791 　

ISSN： 0277-786X
Flexible hollow polycarbonate fiber for endoscopic infrared laser treatment Peer-reviewed

Masayuki Nakazawa, Yi-Wei Shi, Katsumasa Iwai, Yuji Matsuura, Xiao-Song Zhu, Mitsunobu Miyagi

NOVEL OPTICAL INSTRUMENTATION FOR BIOMEDICAL APPLICATIONS III　6631　2007

ISSN： 0277-786X
All-solid single-mode Bragg fibers for compact fiber devices Peer-reviewed

Takashi Katagiri, Yuji Matsuura, Mitsunobu Miyagi

JOURNAL OF LIGHTWAVE TECHNOLOGY　24　(11)　4314-4318　2006/11

DOI： 10.1109/JLT.2006.883667 　

ISSN： 0733-8724
Endoscopic spectrometry and optical biopsy Peer-reviewed

H. Sato, H. Tashiro, Y. Matsuura, T. Shimosegawa, N.Ura, G. Kanai

光学　35　(10)　521-527　2006/10
Fabrication of a polymer-coated silver hollow optical fiber with high performance Peer-reviewed

Yi-Wei Shi, Kentaro Ito, Lin Ma, Takanori Yoshida, Yuji Matsuura, Mitsunobu Miyagi

APPLIED OPTICS　45　(26)　6736-6740　2006/09

DOI： 10.1364/AO.45.006736 　

ISSN： 1559-128X

eISSN： 2155-3165
Bundled hollow optical fibers for transmission of high-peak-power Q-switched Nd : YAG laser pulses Peer-reviewed

Ozgur Yilmaz, Mitsunobu Miyagi, Yuji Matsuura

APPLIED OPTICS　45　(27)　7174-7178　2006/09

DOI： 10.1364/AO.45.007174 　

ISSN： 1559-128X

eISSN： 2155-3165
Side-firing sealing caps for hollow optical fibers Peer-reviewed

Tomonori Watanabe, Yuji Matsuura

LASERS IN SURGERY AND MEDICINE　38　(8)　792-797　2006/09

DOI： 10.1002/lsm.20386 　

ISSN： 0196-8092
Self-cleaning effect of sealing caps for infrared hollow fiber delivering pulsed Er : YAG laser light Peer-reviewed

YW Shi, K Iwai, Y Matsuura, M Miyagi, H Jelinkova

OPTICS AND LASER TECHNOLOGY　38　(2)　107-110　2006/03

DOI： 10.1016/j.optlastec.2004.11.007 　

ISSN： 0030-3992
Bundled hollow-optical fiber for delivery of 30-MW peak power Nd: YAG laser pulses

Yuji Matsuura, Yilmaz Ozgur, Mitsunobu Miyagi

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6083　2006

DOI： 10.1117/12.649174 　

ISSN： 1605-7422
Er:YAG laser radiation applications in different medical branches

Helena Jelínková, Michal Němec, Petr Koranda, Jan Šulc, Miroslav Čech, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　6180　2006

DOI： 10.1117/12.675852 　

ISSN： 0277-786X
Hollow-optical fiber probe for confocal Raman endoscopy

Takashi Katagiri, Yuichi Komachi, Yusuke Hattori, Yuji Matsuura, Mitsunobu Miyagi, Hideo Tashiro, Hidetoshi Sato

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6083　2006

DOI： 10.1117/12.645814 　

ISSN： 1605-7422
Silica nanotaper optics with Bragg-fiber structure

Lin Ma, Takashi Katagiri, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　6351 I　2006

DOI： 10.1117/12.688728 　

ISSN： 0277-786X
Hollow fiber-optic probe for in vivo Raman measurements Peer-reviewed

Takashi Katagiri, Yusuke Hattori, Yuichi Komachi, Yuji Matsuura, Hideo Tashiro, Hidetoshi Sato

Proceedings of SPIE - The International Society for Optical Engineering　6380　2006

DOI： 10.1117/12.686634 　

ISSN： 0277-786X
Uniform polymer-film formation in hollow fiher hy closed loop-coating method Peer-reviewed

Katsumasa Iwai, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VI　6083　2006

DOI： 10.1117/12.649404 　

ISSN： 0277-786X

eISSN： 1996-756X
Development of the optical biopsy system for small experimental animals Peer-reviewed

Hidetoshi Sato, Yusuke Hattori, Yusuke Oshima, Yuichi Komachi, Takashi Katagiri, Toru Asakura, Toru Shimosegawa, Yuji Matsuura, Mitsunobu Miyagi, Gen'ichi Kanai, Nobuo Ura, Koji Masutani, Hideo Tashiro

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　6091　2006

DOI： 10.1117/12.645842 　

ISSN： 1605-7422
Development of the optical biopsy system for small experimental animals - art. no. 60910H Peer-reviewed

Hidetoshi Sato, Yusuke Hattori, Yusuke Oshima, Yuichi Komachi, Takashi Katagiri, Toru Asakura, Toru Shimosegawa, Yuji Matsuura, Mitsunobu Miyagi, Gen'ichi Kanai, Nobuo Ura, Koji Masutani, Hideo Tashiro

Optical Biopsy VI　6091　H910-H910　2006

DOI： 10.1117/12.645842 　

ISSN： 0277-786X
Er : YAG laser radiation for soft and hard urological tissue treatment Peer-reviewed

Petr Koranda, Helena Jelinkova, Michal Nemec, Oto Kohler, Pavel Drlik, Jan Pokorny, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

PHOTONIC THERAPEUTICS AND DIAGNOSTICS II　6078　2006

DOI： 10.1117/12.645926 　

ISSN： 0277-786X
Generation of powerful 3 microns radiation and its delivery Peer-reviewed

Miroslav Cech, Michal Nemec, Petr Koranda, Helena Jelinkova, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

SOLID STATE LASERS AND AMPLIFIERS II　6190　2006

DOI： 10.1117/12.663624 　

ISSN： 0277-786X
Selective preparation of hard dental tissue - classical and laser treatments comparison Peer-reviewed

Tat'jana Dostalova, Helena Jelinkova, Michal Nemec, Petr Koranda, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

LASERS IN DENTISTRY XII　6137　2006

DOI： 10.1117/12.647436 　

ISSN： 0277-786X
Medical application of 3 mu m delivery waveguide system Peer-reviewed

Michal Nemec, Helena Jelinkova, Petr Koranda, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS VI　6083　2006

DOI： 10.1117/12.645893 　

ISSN： 0277-786X

eISSN： 1996-756X
生体内赤外反射スペクトル測定用中空光ファイバ型プローブ Peer-reviewed

松浦祐司, 木野彩子

電気関係学会東北支部連合大会講演論文集　2006　(0)　77-77　2006
Publisher: 電気関係学会東北支部連合大会実行委員会
DOI： 10.11528/tsjc.2006.0_77 　
Fluorescence Measurement under Irradiation of Vacuum-Ultraviolet Light Transmitted by Hollow Optical Fibers Peer-reviewed

K. Murata, Y. Matsuura, M. Miyagi

Trans. IEICE C　J88-C　(12)　1233-1235　2005/12
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 1345-2827
Multiwavelength laser light transmission of hollow optical fiber from the visible to the mid-infrared Peer-reviewed

YW Shi, K Ito, Y Matsuura, M Miyagi

OPTICS LETTERS　30　(21)　2867-2869　2005/11

DOI： 10.1364/OL.30.002867 　

ISSN： 0146-9592
Raman probe using a single hollow waveguide Peer-reviewed

Yuichi Komachi, Hidetoshi Sato, Yuji Matsuura, Mitsuno Miyagi, Hideo Tashiro

Optics Letters　30　(21)　2942-2944　2005/11/01

DOI： 10.1364/OL.30.002942 　

ISSN： 0146-9592
Bundled aluminum hollow-core fibers for delivery of ultraviolet laser beams Peer-reviewed

O Yilmaz, Y Matsuura, M Miyagi

OPTICAL ENGINEERING　44　(10)　106501-1-106501-4　2005/10

DOI： 10.1117/1.2077047 　

ISSN： 0091-3286
Soft-x-ray hollow fiber optics with inner metal coating Peer-reviewed

Y Matsuura, T Oyama, M Miyagi

APPLIED OPTICS　44　(29)　6193-6196　2005/10

DOI： 10.1364/AO.44.006193 　

ISSN： 1559-128X

eISSN： 2155-3165
Use of hollow-core fibers to deliver nanosecond Nd : YAG laser pulses to form sparks in gases Peer-reviewed

AP Yalin, M DeFoort, B Willson, Y Matsuura, M Miyagi

OPTICS LETTERS　30　(16)　2083-2085　2005/08

DOI： 10.1364/OL.30.002083 　

ISSN： 0146-9592
Hollow-waveguide-based nanosecond, near-infrared pulsed laser ablation of tissue Peer-reviewed

S Sato, YW Shi, Y Matsuura, M Miyagi, H Ashida

LASERS IN SURGERY AND MEDICINE　37　(2)　149-154　2005/08

DOI： 10.1002/lsm.20210 　

ISSN： 0196-8092
Characteristics of calculus fragmentation with Er : YAG laser light emitted by an infrared hollow optical fiber with various sealing caps Peer-reviewed

K Iwai, YW Shi, Y Matsuura, M Miyagi, S Saito, Y Arai

APPLIED OPTICS　44　(16)　3266-3270　2005/06

DOI： 10.1364/AO.44.003266 　

ISSN： 1559-128X

eISSN： 2155-3165
Hollow-core waveguides for particle image velocimetry Peer-reviewed

TJ Stephens, MJ Haste, JP Parry, DP Towers, Y Matsuura, YW Shi, M Miyagi, DP Hand

MEASUREMENT SCIENCE AND TECHNOLOGY　16　(5)　1119-1125　2005/05

DOI： 10.1088/0957-0233/16/5/010 　

ISSN： 0957-0233

eISSN： 1361-6501
Interaction of Er:YAG laser radiation with ureter tissue

Helena Jelínková, Petr Koranda, Michal Němec, Jan Šulc, Oto Köhler, Pavel Drlík, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　5968　2005

DOI： 10.1117/12.660045 　

ISSN： 1605-7422
Laser ignition of natural gas engines using fiber delivery

Azer P. Yalin, Morgan W. Defoort, Sachin Joshi, Daniel Olsen, Bryan Willson, Yuji Matsuura, Mitsunobu Miyagi

2005 Fall Technical Conference of the ASME Internal Combustion Engine Division　633-641　2005
Publisher: American Society of Mechanical Engineers
DOI： 10.1115/icef2005-1336 　
Electro-optically Q-switched Er:YAG laser and its application

Petr Koranda, Michal Němec, Helena Jelínkova, Jan Šulc, Miroslav Čech, Yi-Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　5777　(I)　384-389　2005

DOI： 10.1117/12.611042 　

ISSN： 0277-786X
Single-mode operation in silica-core Bragg fibers

Takashi Katagiri, Yuji Matsuura, Mitsunobu Miyagi

Conference on Optical Fiber Communication, Technical Digest Series　3　265-267　2005
Delivery of 10-MW Nd : YAG laser pulses by bundled hollow fibers Peer-reviewed

O Yilmaz, Y Matsuura, M Miyagi

2005 PACIFIC RIM CONFERENCE ON LASERS AND ELECTRO-OPTICS　319-320　2005
Low-loss pilot-beam delivery in hollow optical fiber for high-energy infrared laser light Peer-reviewed

YW Shi, K Ito, Y Matsuura, M Miyagi

OPTICS IN HEALTH CARE AND BIOMEDICAL OPTICS: DIAGNOSTICS AND TREATMENT II , PTS 1 AND 2　5630　122-129　2005

DOI： 10.1117/12.573469 　

ISSN： 0277-786X
Metal-coated capillary optics for soft x-ray Peer-reviewed

Y Matsuura, T Oyama, M Miyagi

Optical Fibers and Sensors for Medical Applications V　5691　9-13　2005

DOI： 10.1117/12.596835 　

ISSN： 0277-786X
Laser radiation tooth bleaching Peer-reviewed

H Jelinkova, T Dostalova, M Nemec, J Sulc, P Koranda, D Housova, M Miyagi, YW Shi, Y Matsuura

LASER PHYSICS LETTERS　1　(12)　617-620　2004/12

DOI： 10.1002/lapl.200410120 　

ISSN： 1612-2011

eISSN： 1612-202X
Hollow optical fibers for ultraviolet and vacuum ultraviolet light Peer-reviewed

Yuji Matsuura, Mitsunobu Miyagi

IEEE Journal on Selected Topics in Quantum Electronics　10　(6)　1430-1434　2004/11

DOI： 10.1109/JSTQE.2004.837710 　

ISSN： 1077-260X
X-ray opaque waveguide for dentistry Peer-reviewed

Taťjana Dostálová, Helena Jelínková, Michal Němec, Jan Šulc, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Photomedicine and Laser Surgery　22　(3)　221-225　2004/06

DOI： 10.1089/1549541041438551 　

ISSN： 1549-5418
赤外中空ファイバ用ボール型シーリングキャップの製作とその特性 Peer-reviewed

遠藤正志, 笠原亮介, 松浦祐司, 宮城光信

レーザー研究　32　(5)　364-367　2004/05
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.32.364 　

ISSN： 0387-0200

More details Close

To seal the end of hollow fibers for medical uses, a sealing cap for Er:YAG laser light is fabricated by fusing a glass ball onto the end of a glass capillary. The cap has a focusing effect and the focal point is located near the cap surface. Optical properties of the caps with a diameter of 1 mm are evaluated, and the lowest insertion loss of 0.27 dB and the highest transmitted pulse energy above 750 mJ have been obtained for the cap made of lowOH silica glass.
Penetration of high-intensity Er : YAG laser light emitted by IR hollow optical fibers with sealing caps in water Peer-reviewed

K Iwai, YW Shi, M Endo, K Ito, Y Matsuura, M Miyagi, H Jelinkova

APPLIED OPTICS　43　(12)　2568-2571　2004/04

DOI： 10.1364/AO.43.002568 　

ISSN： 1559-128X

eISSN： 2155-3165
Photonic bandgap fiber with a silica core and multilayer dielectric cladding Peer-reviewed

T Katagiri, Y Matsuura, M Miyagi

OPTICS LETTERS　29　(6)　557-559　2004/03

DOI： 10.1364/OL.29.000557 　

ISSN： 0146-9592
Comparison of mid infrared lasers effect on ureter tissue Peer-reviewed

H Jelinkova, O Kohler, M Nemec, P Koranda, J Sulc, Kubecek, V, P Drlik, M Miyagi, YW Shi, Y Matsuura, MR Kokta, P Hrabal, M Jelinek

LASER PHYSICS LETTERS　1　(3)　143-146　2004/03

DOI： 10.1002/lapl.200310038 　

ISSN： 1612-2011

eISSN： 1612-202X
Tooth bleaching using three laser systems, halogen-light unit and chemical action agents

Tatjana Dostalova, Helena Jelínková, Devana Housova, Jan Šulc, Michal Nemec, Petr Koranda, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Progress in Biomedical Optics and Imaging - Proceedings of SPIE　5610　213-217　2004

DOI： 10.1117/12.584425 　

ISSN： 1605-7422
Q-switching of mid-infrared Er:YAG laser and its radiation delivery system

Helena Jelínková, Petr Koranda, Michal Němec, Jan Šulc, Miroslav Čech, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　5460　64-73　2004

DOI： 10.1117/12.544817 　

ISSN： 0277-786X
Root canal surface after application x-ray opaque waveguide

Tat'jána Dostálová, Helena Jelínková, Marie Bartoňová, Jan Šulc, Michal Němec, Petr Koranda, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　5313　48-53　2004

DOI： 10.1117/12.528851 　

ISSN： 0277-786X
Hollow waveguide for giant Er:YAG laser pulses transfer

Michal Němec, Helena Jelínková, Petr Koranda, Miroslav Čech, Jan Šulc, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　5317　214-219　2004

DOI： 10.1117/12.525706 　

ISSN： 0277-786X
Fabrication of silica-core photonic bandgap fiber with multilayer cladding

Takashi Katagiri, Yuji Matsuura, Mitsunobu Miyagi

OSA Trends in Optics and Photonics Series　95 A　705-707　2004

ISSN： 1094-5695
Fabrication of silica-core photonic bandgap fiber with multilayer cladding

Takashi Katagiri, Yuji Matsuura, Mitsunobu Miyagi

Conference on Optical Fiber Communication, Technical Digest Series　1　707-709　2004
Transmission properties of hollow glass fibers for the infrared fabricated by glass-drawing technique Peer-reviewed

R Kasahara, T Katagiri, Y Matsuura, M Miyagi

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS IV　5317　81-85　2004

DOI： 10.1117/12.546424 　

ISSN： 0277-786X
Surface modification of tooth root canal after application of an X-ray opaque waveguide Peer-reviewed

T. Dostálová, H. Jelínková, J. Šulc, M. Němec, P. Koranda, M. Bartoňová, P. Radina, M. Miyagi, Y. W. Shi, Y. Matsuura

Applied Physics A: Materials Science and Processing　79　(4-6)　887-889　2004
Publisher: Springer Verlag
DOI： 10.1007/s00339-004-2661-7 　

ISSN： 0947-8396
Compact effector optics for processing in limited physical access situations Peer-reviewed

Andreas Kuhn, Mahlen D. T. Fox, Paul W. French, Simon Hettrick, Duncan P. Hand, Yi-Wei Shi, Yuji Matsuura, Mitsunobu Miyagi, Kenneth G. Watkins, Clive L. M. Ireland, Julian D. C. Jones

Applied Optics　42　(25)　5101-5106　2003/08/20

DOI： 10.1364/AO.42.005101 　

ISSN： 2155-3165 1559-128X
Beam homogenizer for hollow-fiber delivery system of excimer laser light Peer-reviewed

Y Matsuura, D Akiyama, M Miyagi

APPLIED OPTICS　42　(18)　3505-3508　2003/06

DOI： 10.1364/AO.42.003505 　

ISSN： 1559-128X

eISSN： 2155-3165
Erbium: YAG laser lithotripsy by use of a flexible hollow waveguide with an end–scaling cap Peer-reviewed

Katsumasa Iwai, Yi-Wei Shi, Koh Nito, Yuji Matsuura, Takao Kasai, Mitsunobu Miyagi, Seichi Saito, Youichi Arai, Naomasa Ioritani, Yoshihide Okagami, Michal Nemec, Jan Sulc, Helena Jelinkova, Miroslav Zavoral, Oto Kohler, Pavel Drlik

Applied Optics　42　(13)　2431-2435　2003/05/01

DOI： 10.1364/AO.42.002431 　

ISSN： 2155-3165 1559-128X
Different influence of long and short mid-infrared laser pulses on eye tissue Peer-reviewed

H Jelinkova, J Pasta, M Nemec, J Sulc, M Miyagi, YW Shi, Y Matsuura, M Jelinek

LASER PHYSICS　13　(5)　735-742　2003/05

ISSN： 1054-660X
Rugged distal tips for CO2 laser medicine Peer-reviewed

Song Ouyang, Yi-Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Optics and Laser Technology　35　(1)　65-68　2003/02

DOI： 10.1016/S0030-3992(02)00124-X 　

ISSN： 0030-3992
High power laser radiation delivery

Helena Jelinková, Michal Němec, Jan Šulc, Pavel Černý, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　5120　684-687　2003

ISSN： 0277-786X
Delivery system for laser medical instrument

Helena Jelínková, Michal Němec, Jan Šulc, Pavel Černý, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　5143　300-304　2003
Publisher: SPIE
DOI： 10.1117/12.500450 　

ISSN： 0277-786X
Calculi fragmentation of Er : YAG laser light through a sealed flexible hollow fiber delivery system Peer-reviewed

K Iwai, YW Shi, K Nito, Y Matsuura, T Kasai, M Miyagi, S Saito, Y Arai, N Ioritani, Y Okagami, M Nemec, J Sulc, H Jelinkova, M Zavoral, O Kohler, P Drlik

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS III　4957　62-69　2003

ISSN： 0277-786X
Sealed hollow infrared fibers for medical applications: Experiment in laser lithotripsy Peer-reviewed

Katsumasa Iwai, Masashi Endo, Yuji Matsuura, Yi-Wei Shi, Mitsunobu Miyagi

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest　2　731　2003
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/CLEOPR.2003.1277269 　
Infrared hollow-glass fiber produced by fiber-drawing technique Peer-reviewed

Y Matsuura, R Kasahara, T Katagiri, M Miyagi

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS III　4957　79-83　2003

ISSN： 0277-786X
Metal-covered photonic bandgap multilayer for infrared hollow waveguides Peer-reviewed

T Katagiri, Y Matsuura, M Miyagi

APPLIED OPTICS　41　(36)　7603-7606　2002/12

DOI： 10.1364/AO.41.007603 　

ISSN： 1559-128X

eISSN： 2155-3165
YAG laser in ophthalmology

Helena Jelinkova, Jifi Pasta, Jan Sulc, Michal Nemec, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　4903　38-47　2002/10/15
Publisher: SPIE
DOI： 10.1117/12.486631 　

ISSN： 1996-756X 0277-786X
CO2レ-ザ-光伝送用中空ファイバの可視パイロット光伝送特性の改善 Peer-reviewed

阿部由起雄, 岩井克全, 豊岡理人, 片桐崇史, 金森亮平, 石芸尉, 松浦祐司, 宮城光信, 大石純子, 岡上吉秀

レーザー研究　30　(8)　472-474　2002/08
Publisher:
DOI： 10.2184/lsj.30.472 　

ISSN： 0387-0200
Nd : YAP 1.34-mu m/1.08-/mu m laser passively mode-locked and Q-switched by V3+: YAG/BDN II saturable absorbers with efficient radiation delivery through a hollow glass waveguide coated with COP/Ag Peer-reviewed

H Jelinkova, P Cerny, J Sulc, JK Jabczynski, K Kopczynski, Z Mierczyk, M Miyagi, Y Matsuura, YW Shi

OPTICAL ENGINEERING　41　(8)　1976-1982　2002/08

DOI： 10.1117/1.1488161 　

ISSN： 0091-3286
Equivalent complex refractive indices for ray-tracing evaluation of dielectric-coated hollow waveguides Peer-reviewed

K Iwai, Y Abe, Y Matsuura, M Miyagi

OPTICAL ENGINEERING　41　(7)　1471-1472　2002/07

DOI： 10.1117/1.1485090 　

ISSN： 0091-3286
Endodontic treatment with application of Er : YAG laser waveguide radiation disinfection Peer-reviewed

T Dostalova, H Jelinkova, D Housova, J Sulc, M Nemec, J Duskova, M Miyagi, M Kratky

JOURNAL OF CLINICAL LASER MEDICINE & SURGERY　20　(3)　135-139　2002/06

ISSN： 1044-5471
Hollow infrared fibers fabricated by glass-drawing technique Peer-reviewed

Y Matsuura, R Kasahara, T Katagiri, M Miyagi

OPTICS EXPRESS　10　(12)　488-492　2002/06

DOI： 10.1364/OE.10.000488 　

ISSN： 1094-4087
Er:YAGレ-ザ-伝送用の高強度ポリマ-内装中空ファイバの製作 Peer-reviewed

岩井克全, 阿部由起雄, 石芸尉, 松浦祐司, 宮城光信, 大石純子, 岡上吉秀

レーザー研究　30　(5)　255-258　2002/05
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.30.255 　

ISSN： 0387-0200

More details Close

A new method is proposed to fabricate infrared polymer-coated silver hollow fibers with high mechanical strength. Two kinds of polymer are used as a protective polymer to the inner wall of silica capillary glass pipe and a dielectric layer to a silver layer, respectively. Mechanical and transmission properties of the hollow fibers have been discussed.
実用化の進む中空光ファイバ-の開発動向 Peer-reviewed

松浦祐司

機能材料　22　(4)　35-40　2002/04
Optical properties of end-sealed hollow fibers Peer-reviewed

S Mohri, T Kasai, Y Abe, YW Shi, Y Matsuura, M Miyagi

APPLIED OPTICS　41　(7)　1251-1255　2002/03

DOI： 10.1364/AO.41.001251 　

ISSN： 1559-128X

eISSN： 2155-3165
Delivery of femtosecond pulses by flexible hollow fibers Peer-reviewed

Yuji Matsuura, Mitsunobu Miyagi, Kazuhiko Shihoyama, Masako Kawachi

Journal of Applied Physics　91　(2)　887-889　2002/01/15

DOI： 10.1063/1.1425070 　

ISSN： 0021-8979
Hollow bent output devices in CO2 laser light delivery system Peer-reviewed

K Iwai, YW Shi, Y Matsuura, M Miyagi, J Oishi, Y Okagami

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS II　4616　152-160　2002

ISSN： 0277-786X
Rugged hollow fiber for the infrared and its use in laser lithotripsy Peer-reviewed

K Iwai, YW Shi, Y Matsuura, M Miyagi

OPTICS IN HEALTH CARE AND BIOMEDICAL OPTICS: DIAGNOSTICS AND TREATMENT　4916　115-119　2002

ISSN： 0277-786X
Hollow fibers for delivery of harmonic pulses of Q-switched Nd : YAG lasers Peer-reviewed

Y Matsuura, G Takada, T Yamamoto, YW Shi, M Miyagi

APPLIED OPTICS　41　(3)　442-445　2002/01

DOI： 10.1364/AO.41.000442 　

ISSN： 1559-128X

eISSN： 2155-3165
Interaction of infrared laser radiation with myocardial tissue Peer-reviewed

H. Jelinkova, M. Nemec, J. Sule, D. Dvoracek, M. Vrbova, A. Jancarek, G. Kuhnova, J. Kvasnicka, M. Kokta, M. Miyagi, Y. Shi, Y. Matsuura

Fine Mechanics and Optics　46　(11)　374-377　2001/11
Infrared-laser delivery system based on polymer-coated hollow fibers Peer-reviewed

Yuji Matsuura, Yi-Wei Shi, Yukio Abe, Masaru Yaegashi, Goro Takada, Shintaro Mohri, Mitsunobu Miyagi

Optics and Laser Technology　33　(5)　279-283　2001/07

DOI： 10.1016/S0030-3992(01)00018-4 　

ISSN： 0030-3992
Properties of hollow bent output tips in CO2 laser light delivery system Peer-reviewed

Yi-Wei Shi, Zhi-Yun Pan, Yuji Matsuura, Yuji Konno, Yoshizo Aizawa, Mitsunobu Miyagi

Optics and Laser Technology　33　(4)　225-230　2001/06

DOI： 10.1016/S0030-3992(01)00028-7 　

ISSN： 0030-3992
The delivery of mid-infrared laser radiation by sealed waveguides and their application in ophthalmology Peer-reviewed

M. Nemec, H. Jelinkova, J. Sulc, J. Pasta, M. Miyagi, Y. Shi, Y. Matsuura, Y. Abe, K. Iwai

Fine Mechanics and Optics　46　(6)　187-190　2001/06
Ablation effect comparison of solid-state mid-infrared lasers applied for TMLR

Helena Jelínková, Michal Nĕmec, Václav Kubeček, Jan Šulc, Daniel Dvořáček, Jan Kvasnička, Milan R. Kokta, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　4244　461-467　2001

DOI： 10.1117/12.427831 　

ISSN： 0277-786X
Sealing technique for infrared hollow fibers

Yuji Matsuura, Naoko Kobayashi, Shintaro Mohri, Yukio Abe, Yi-Wei Shi, Takao Kasai, Mitsunobu Miyagi

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest　1　I228-I229　2001
Hollow fiber delivery of Q-switched, multiple-order Nd:YAG laser light

Y. Matsuura, T. Yamamoto, G. Takada, Y. W. Shi, M. Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　4158　81-85　2001

DOI： 10.1117/12.413780 　

ISSN： 0277-786X
Er : YAG laser delivery system for dental application using small-bore hollow fibers Peer-reviewed

Y Abe, K Iwai, S Mohri, YW Shi, Y Matsuura, M Miyagi

CLEO(R)/PACIFIC RIM 2001, VOL I, TECHNICAL DIGEST　242-243　2001
Hollow Fibers for Medical Uses

Matsuura Yuji

rle　29　226-227　2001
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.29.Supplement_226 　

ISSN： 0387-0200
Hollow fiber delivery of F-2-excimer laser light Peer-reviewed

Y Matsuura, T Yamamoto, M Miyagi

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS　4253　37-41　2001

ISSN： 0277-786X
Tapered input coupler for hollow fibers delivery of Er:YAG laser light Peer-reviewed

八重樫大, 松浦祐司, 宮城光信

Laser Original　28　(8)　516-519　2000/08
Publisher:
DOI： 10.2184/lsj.28.516 　

ISSN： 0387-0200
Delivery of F-2-excimer laser light by aluminum hollow fibers Peer-reviewed

Y Matsuura, T Yamamoto, M Miyagi

OPTICS EXPRESS　6　(13)　257-261　2000/06

ISSN： 1094-4087
Flexible small-bore hollow fibers with an inner polymer coating Peer-reviewed

Y Abe, YW Shi, Y Matsuura, M Miyagi

OPTICS LETTERS　25　(3)　150-152　2000/02

DOI： 10.1364/OL.25.000150 　

ISSN： 0146-9592
Hollow fibers for Nd:YAG and excimer lasers

Yuji Matsuura, Takashi Yamamoto, Goro Takada, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　2000

ISSN： 0277-786X
Vacuum-cored hollow waveguide for high-energy, high-intensity laser transmission and its application to biological tissue ablation

Shunichi Sato, Tsunenori Arai, Yi Wei Shi, Yuji Matsuura, Mitsunobu Miyagi, Hiroshi Ashida

Proceedings of SPIE - The International Society for Optical Engineering　3911　298-302　2000
Publisher: SPIE
ISSN： 0277-786X
Polymer-coated hollow fibers for medical infrared lasers - fabrication, transmission, and end sealing

Yi Wei Shi, Yukio Abe, Shintaro Mori, Yuji Matsuura, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3911　268-275　2000
Publisher: SPIE
ISSN： 0277-786X
Hollow fibers for delivery of high-power lasers Peer-reviewed

Y Matsuura, M Miyagi

HIGH-POWER LASER ABLATION III　4065　294-300　2000

ISSN： 0277-786X
Aluminum-hollow fiber delivery system for excimer lasers Peer-reviewed

Y Matsuura, T Yamamoto, M Miyagi

BIOMEDICAL DIAGNOSTIC, GUIDANCE, AND SURGICAL-ASSIST SYSTEMS II　3911　292-297　2000

ISSN： 0277-786X
New and simple method for fabricating polymer-coated silver hollow fibers with large mechanical strength Peer-reviewed

Yi-Wei Shi, Zhi-Yun Pan, Yuji Matsuura, Mitsunobu Miyagi

Optics and Laser Technology　32　(4)　273-275　2000

DOI： 10.1016/S0030-3992(00)00057-8 　

ISSN： 0030-3992
Vacuum-cored hollow waveguide for transmission of high-energy, nanosecond Nd : YAG laser pulses and its application to biological tissue ablation Peer-reviewed

S Sato, H Ashida, T Arai, YW Shi, Y Matsuura, M Miyagi

OPTICS LETTERS　25　(1)　49-51　2000/01

DOI： 10.1364/OL.25.000049 　

ISSN： 0146-9592
High-power Nd : YAG laser picosecond pulse delivery by a polymer-coated silver hollow-glass waveguide Peer-reviewed

H Jelinkova, J Sulc, P Cerny, YW Shi, Y Matsuura, M Miyagi

OPTICS LETTERS　24　(14)　957-959　1999/07

ISSN： 0146-9592
Aluminum hollow fibers for excimer lasers Peer-reviewed

松浦祐司, 宮城光信

光アライアンス　10　(7)　20-22　1999/07
Publisher:
ISSN： 0917-026X
Aluminum-coated hollow glass fibers for ArF-excimer laser light fabricated by metallorganic chemical-vapor deposition Peer-reviewed

Y Matsuura, M Miyagi

APPLIED OPTICS　38　(12)　2458-2462　1999/04

DOI： 10.1364/AO.38.002458 　

ISSN： 1559-128X

eISSN： 2155-3165
Hollow fibers for laser delivery systems Peer-reviewed

Yuji Matsuura, Mitsunobu Miyagi

Laser Original　27　(3)　173-177　1999/03
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.27.173 　

ISSN： 0387-0200

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Hollow fibers for variety of lasers emitting wavelengths from the infrared to ultraviolet are introduced. Forinfrared lasers represented by CO₂ and Er: YAG lasers, hollow fibers having dielectric and silver film on theinside of glass tubing have been developed. It is shown that the fibers transmit high-powered laser light withlow attenuation due to the interference effect of the internal dielectric layer. For excimer laser light, hollow glassfibers with an inner aluminum film show low loss characteristics because of the high reflection coefficient ofaluminum in the ultraviolet region. Hollow fibers enable many applications in industrial and medical fieldsthat need effective delivery medium of laser light.
Low loss smart hollow waveguides with new polymer coating material Peer-reviewed

YW Shi, Y Abe, Y Matsuura, M Miyagi

OPTICS AND LASER TECHNOLOGY　31　(2)　135-140　1999/03

DOI： 10.1016/S0030-3992(99)00017-1 　

ISSN： 0030-3992
Fabrication of copper oxide-coated hollow waveguides for CO2 laser radiation Peer-reviewed

Y Matsuura, D Miura, M Miyagi

APPLIED OPTICS　38　(9)　1700-1703　1999/03

ISSN： 1559-128X

eISSN： 2155-3165
Delivery of high-energy, infrared-laser pulses by polymer-coated hollow fibers

Yuji Matsuura, Konosuke Hanamoto, Yi Wei Shi, Yukio Abe, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3849　138-142　1999
Publisher: Society of Photo-Optical Instrumentation Engineers
ISSN： 0277-786X
Nd:YAG picosecond pulses delivery by cyclic olefin polymer-coated silver hollow glass waveguide

Helena Jelinkova, Jan Sulc, Pavel Cemy, Mitsunobu Miyagi, Yuji Matsuura, Yi-Wei Shi

CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics　3　1016-1017　1999
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/CLEOPR.1999.817949 　
Small-bore, polymer-coated hollow fibers for medical infrared lasers

Yukio Abe, Yuji Matsuura, Mitsunobu Miyagi

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest　4　1307-1308　1999
Publisher: IEEE
Smart polymer-coated hollow fibers

Yi Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3596　23-31　1999
Publisher: Society of Photo-Optical Instrumentation Engineers
DOI： 10.1117/12.346723 　

ISSN： 0277-786X
Hollow-waveguide-based transmission of Q-switched Nd:YAG laser beam for biological tissue ablation

Shunichi Sato, Hiroshi Ashida, Yi Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3596　50-54　1999
Publisher: Society of Photo-Optical Instrumentation Engineers
ISSN： 0277-786X
Hollow fiber delivery of ArF and KrF excimer laser light

Yuji Matsuura, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3596　2-7　1999
Publisher: Society of Photo-Optical Instrumentation Engineers
DOI： 10.1117/12.346704 　

ISSN： 0277-786X
New cyclic olefin polymer-coated silver hollow glass waveguides for the near-infrared to mid-infrared

Yi Wei Shi, Konosuke Hanamoto, You Wang, Yukio Abe, Yuji Matsuura, Shunichi Sato, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　3570　4-11　1999
Publisher: Society of Photo-Optical Instrumentation Engineers
DOI： 10.1117/12.336914 　

ISSN： 0277-786X
Lensed-taper launching coupler for high energy Er : YAG laser Peer-reviewed

Y Matsuura, H Hiraga, M Miyagi

BIOMEDICAL SENSORS, FIBERS, AND OPTICAL DELIVERY SYSTEMS, PROCEEDINGS　3570　70-76　1999

ISSN： 0277-786X
Hollow-core, lensed-taper launching coupler for Er : YAG laser light Peer-reviewed

Y Matsuura, M Yaegashi, M Miyagi

INFRARED OPTICAL FIBERS AND THEIR APPLICATIONS　3849　149-153　1999

ISSN： 0277-786X
Hollow fibers for high-power lasers Peer-reviewed

Y Matsuura, M Miyagi

OPTICAL PULSE AND BEAM PROPAGATION　3609　251-256　1999

ISSN： 0277-786X
Hollow fibers for delivery of pulsed lasers Peer-reviewed

松浦祐司, 宮城光信

応用物理　68　(1)　41-43　1999/01

DOI： 10.11470/oubutsu1932.68.41 　
Hollow-fiber delivery of high-power pulsed Nd : YAG laser light Peer-reviewed

Y Matsuura, K Hanamoto, S Sato, M Miyagi

OPTICS LETTERS　23　(23)　1858-1860　1998/12

ISSN： 0146-9592
Cyclic olefin polymer-coated silver hollow glass waveguides for the infrared Peer-reviewed

YW Shi, Y Wang, Y Abe, Y Matsuura, M Miyagi, S Sato, M Taniwaki, H Uyama

APPLIED OPTICS　37　(33)　7758-7762　1998/11

DOI： 10.1364/AO.37.007758 　

ISSN： 0003-6935
Refractive indices and extinction coefficients of polymers for the mid-infrared region Peer-reviewed

Y Wang, Y Abe, Y Matsuura, M Miyagi, H Uyama

APPLIED OPTICS　37　(30)　7091-7095　1998/10

ISSN： 0003-6935
Robust hollow devices and waveguides for Er:YAG laser radiation Peer-reviewed

Y. Wang, Y. Matsuura, M. Miyagi

Opt. Laser Technol.　29　(8)　449-453　1998/08

DOI： 10.1016/S0030-3992(97)00053-4 　
Flexible hollow waveguides for delivery of excimer-laser light Peer-reviewed

Y Matsuura, M Miyagi

OPTICS LETTERS　23　(15)　1226-1228　1998/08

DOI： 10.1364/OL.23.001226 　

ISSN： 0146-9592
Design and transmission characteristics of lensed-taper launching coupler for infrared hollow fibers Peer-reviewed

Hajime Hiraga, Yuji Matsuura, Mitsunobu Miyagi, Shinji Onodera, J. A. Harrington

Laser Original　26　(4)　331-334　1998/04
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.26.331 　

ISSN： 0387-0200

More details Close

A new scheme of launching coupler for hollow fibers consisting of a lens and a tapered hollow waveguide is proposed to increase the alignment tolerance between the incident beam and a hollow fiber. A series of experiments using the tapered hollow waveguide made of Pyrex glass were performed to investigate the properties and effectiveness of the tapered waveguide and to design the structural parameters of the lensed-taper coupler. We successfully reduced the attenuation of the tapered hollow waveguide with a silver iodide and silver film coated on the inner surface of glass taper. This new launching system has large alignment tolerance for the optical axis of the waveguide.
High power hollow fibers Peer-reviewed

Y Matsuura, M Miyagi

HIGH-POWER LASER ABLATION, PTS 1-2　3343　222-227　1998

ISSN： 0277-786X
Fabrication of hollow fibers for CO2 laser by using MOCVD method Peer-reviewed

Y Matsuura, D Miura, M Miyagi

SURGICAL-ASSIST SYSTEMS, PROCEEDINGS OF　3262　119-124　1998

ISSN： 0277-786X
Polymer-coated hollow fiber for CO2 laser delivery Peer-reviewed

Y Abe, Y Matsuura, YW Shi, Y Wang, H Uyama, M Miyagi

OPTICS LETTERS　23　(2)　89-90　1998/01

DOI： 10.1364/OL.23.000089 　

ISSN： 0146-9592
Lensed-taper launching coupler for small-bore, infrared hollow fibers Peer-reviewed

Y Matsuura, H Hiraga, Y Wang, Y Kato, M Miyagi, S Abe, S Onodera

APPLIED OPTICS　36　(30)　7818-7821　1997/10

ISSN： 0003-6935
Silver-halide fiber tip as a beam homogenizer for infrared hollow waveguides Peer-reviewed

Y Matsuura, M Miyagi, A German, L Nagli, A Katzir

OPTICS LETTERS　22　(17)　1308-1310　1997/09

ISSN： 0146-9592
Small-Bore fluorocarbon polymer-Coated silver hollow glass waveguides for Er:YAG laser light Peer-reviewed

Y. Wang, Y. W. Shi, Y. Matsuura, M. Miyagi

Opt. Laser Technol.　29　(8)　455-461　1997/08

DOI： 10.1016/S0030-3992(97)00055-8 　
Hollow glass waveguides with three-layer dielectric coating fabricated by chemical vapor deposition Peer-reviewed

Y Matsuura, JA Harrington

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION　14　(6)　1255-1259　1997/06

ISSN： 0740-3232
Beam homogenizer for infrared hollow waveguides using silver-halide fibre tip

Yuji Matsuura, Mitsunobu Miyagi, Alla German, Lev Nagli, Abraham Katzir

Proceedings of SPIE - The International Society for Optical Engineering　3199　70-74　1997

DOI： 10.1117/12.301098 　

ISSN： 0277-786X
Hollow waveguides for medical infrared lasers

Mitsunobu Miyagi, Yuji Matsuura

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest　278　1997
Publisher: IEEE
Hydrocarbon-polymer coated hollow glass fiber for CO2 laser

Takehiro Shimomura, Hiroshi Uyama, Yuji Matsuura, Mitsunobu Miyagi

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest　295　1997
Publisher: IEEE
Lensed taper coupler for hollow waveguides Peer-reviewed

H Hiraga, Y Matsuura, Y Wang, Y Kato, M Miyagi, S Abe, S Onodera

SPECIALTY FIBER OPTICS FOR BIOMEDICAL AND INDUSTRIAL APPLICATIONS, PROCEEDINGS OF　2977　47-50　1997
Hollow fiber beam delivery systems Peer-reviewed

Y Matsuura, M Miyagi

XI INTERNATIONAL SYMPOSIUM ON GAS FLOW AND CHEMICAL LASERS AND HIGH-POWER LASER CONFERENCE　3092　120-125　1997
Evaluation of gold, silver, and dielectric-coated hollow glass waveguides Peer-reviewed

K Matsuura, Y Matsuura, JA Harrington

OPTICAL ENGINEERING　35　(12)　3418-3421　1996/12

DOI： 10.1117/1.601101 　

ISSN： 0091-3286
Power delivery of free electron laser light by hollow glass waveguides Peer-reviewed

Y Matsuura, K Matsuura, JA Harrington

APPLIED OPTICS　35　(27)　5395-5397　1996/09

ISSN： 0003-6935
Low order multimode generation in hollow glass waveguides Peer-reviewed

Y Matsuura, CD Rabii, K Matsuura, JA Harrington

ELECTRONICS LETTERS　32　(12)　1096-1098　1996/06

DOI： 10.1049/el:19960744 　

ISSN： 0013-5194
OPTICAL-PROPERTIES OF SMALL-BORE HOLLOW GLASS WAVE-GUIDES Peer-reviewed

Y MATSUURA, T ABEL, JA HARRINGTON

APPLIED OPTICS　34　(30)　6842-6847　1995/10

ISSN： 0003-6935
INFRARED HOLLOW GLASS WAVE-GUIDES FABRICATED BY CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

Y MATSUURA, JA HARRINGTON

OPTICS LETTERS　20　(20)　2078-2080　1995/10

ISSN： 0146-9592
THEORETICAL AND EXPERIMENTAL INVESTIGATIONS OF LOSS BEHAVIOR IN THE INFRARED IN QUARTZ HOLLOW WAVE-GUIDES WITH ROUGH INNER SURFACES Peer-reviewed

T TAKATANI, Y MATSUURA, M MIYAGI

APPLIED OPTICS　34　(21)　4352-4357　1995/07

ISSN： 0003-6935
Theoretical and experimental investigations of loss behavior in the infrared in quartz hollow waveguides with rough inner surfaces

Kunihiro Takatani, Yuji Matsuura, Mitsunobu Miyagi

Applied Optics　34　(21)　4352-4357　1995

DOI： 10.1364/AO.34.004352 　

ISSN： 2155-3165 1559-128X
SMALL-BORE HOLLOW WAVE-GUIDE FOR DELIVERY OF NEAR SINGLEMODE IR LASER-RADIATION Peer-reviewed

Y MATSUURA, T ABEL, J HIRSCH, JA HARRINGTON

ELECTRONICS LETTERS　30　(20)　1688-1690　1994/09

DOI： 10.1049/el:19941124 　

ISSN： 0013-5194
FABRICATION AND TRANSMISSION PROPERTIES OF ZNS-COATED AG WAVE-GUIDES FOR ER-YAG, CO, AND CO2-LASER LIGHT Peer-reviewed

Y MATSUURA, T KAMENO, M MIYAGI

PROCEEDINGS OF BIOMEDICAL OPTOELECTRONIC DEVICES AND SYSTEMS　2084　6-13　1994
Er:YAG, CO, and CO2 laser delivery by ZnS-coated Ag hollow waveguides Peer-reviewed

Yuji Matsuura, Mitsunobu Miyagi

Applied Optics　32　(33)　6598-6601　1993

DOI： 10.1364/AO.32.006598 　

ISSN： 2155-3165 1559-128X
中空導波路による光エネルギ-伝送

松浦祐司, 宮城光信

応用物理　62　(1)　44-46　1993/01
Publisher:
DOI： 10.11470/oubutsu1932.62.44 　

ISSN： 0369-8009
TRANSMISSION PROPERTIES OF RECTANGULAR HOLLOW WAVE-GUIDES FOR CO2-LASER LIGHT Peer-reviewed

H MACHIDA, Y MATSUURA, H ISHIKAWA, M MIYAGI

APPLIED OPTICS　31　(36)　7617-7622　1992/12

ISSN： 0003-6935
LOW-LOSS METALLIC HOLLOW WAVE-GUIDES COATED WITH DURABLE AND NONTOXIC ZNS Peer-reviewed

Y MATSUURA, M MIYAGI

APPLIED PHYSICS LETTERS　61　(14)　1622-1623　1992/10

DOI： 10.1063/1.107513 　

ISSN： 0003-6951
BENDING LOSSES AND BEAM PROFILES OF ZINC SELENIDE-COATED SILVER WAVE-GUIDES FOR CARBON-DIOXIDE LASER-LIGHT Peer-reviewed

Y MATSUURA, M MIYAGI

APPLIED OPTICS　31　(30)　6441-6445　1992/10

ISSN： 0003-6935
ANOMALOUS LOSS BEHAVIOR IN CIRCULAR QUARTZ GLASS HOLLOW WAVE-GUIDE WITH RANDOM INNER SURFACE AROUND RESONANCE WAVELENGTH AT INFRARED Peer-reviewed

K TAKATANI, Y MATSUURA, M MIYAGI

ELECTRONICS LETTERS　28　(19)　1813-1814　1992/09

DOI： 10.1049/el:19921156 　

ISSN： 0013-5194
Non-toxic dielectric-coated metallic waveguides for medical lasers

Yuji Matsuura, Mitsunobu Miyagi

Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS　1992-　652-653　1992
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/LEOS.1992.694141 　

ISSN： 1092-8081
ZNSE-COATED AG WAVE-GUIDE FOR CO-2 LASER-LIGHT TRANSMISSION Peer-reviewed

Y MATSUURA, M MIYAGI

INFRARED FIBER OPTICS III　1591　109-115　1992
FABRICATION OF LOW-LOSS ZINC-SELENIDE COATED SILVER HOLLOW WAVE-GUIDES FOR CO2-LASER LIGHT Peer-reviewed

Y MATSUURA, M MIYAGI, A HONGO

JOURNAL OF APPLIED PHYSICS　68　(11)　5463-5466　1990/12

DOI： 10.1063/1.347003 　

ISSN： 0021-8979
BENDING LOSSES OF INCOHERENT-LIGHT IN CIRCULAR HOLLOW WAVE-GUIDES Peer-reviewed

M SAITO, Y MATSUURA, M KAWAMURA, M MIYAGI

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION　7　(11)　2063-2068　1990/11

ISSN： 0740-3232
TRANSMISSION CHARACTERISTICS OF GERMANIUM THIN-FILM-COATED METALLIC HOLLOW WAVE-GUIDES FOR HIGH-POWERED CO2-LASER LIGHT Peer-reviewed

A HONGO, KI MOROSAWA, T SHIOTA, Y MATSUURA, M MIYAGI

IEEE JOURNAL OF QUANTUM ELECTRONICS　26　(9)　1510-1515　1990/09

DOI： 10.1109/3.102628 　

ISSN： 0018-9197
DIELECTRIC-COATED METALLIC HOLLOW WAVE-GUIDE FOR 3-MU-M ER-YAG, 5-MU-M CO, AND 10.6-MU-M CO2-LASER LIGHT TRANSMISSION Peer-reviewed

Y MATSUURA, A HONGO, M MIYAGI

APPLIED OPTICS　29　(15)　2213-2214　1990/05

DOI： 10.1364/AO.29.002213 　

ISSN： 0003-6935
SPECTRAL BENDING LOSSES OF INCOHERENT IR LIGHT IN CIRCULAR WAVE-GUIDES Peer-reviewed

Y MATSUURA, M KAWAMURA, M MIYAGI, H ISHIKAWA

APPLIED OPTICS　29　(15)　2214-2216　1990/05

DOI： 10.1364/AO.29.002214 　

ISSN： 0003-6935
LOSS REDUCTION OF DIELECTRIC-COATED METALLIC HOLLOW WAVE-GUIDES FOR CO2-LASER LIGHT TRANSMISSION Peer-reviewed

Y MATSUURA, M MIYAGI, A HONGO

OPTICS AND LASER TECHNOLOGY　22　(2)　141-145　1990/04

DOI： 10.1016/0030-3992(90)90025-Y 　

ISSN： 0030-3992
Hollow IR waveguides

Mitsunobu Miyagi, Akihito Hongo, Yuji Matsuura

Proceedings of SPIE - The International Society for Optical Engineering　1228　26-35　1990
Publisher: Publ by Int Soc for Optical Engineering
DOI： 10.1117/12.18624 　

ISSN： 0277-786X
A novel fabrication method of dielectric-coated metallic hollow waveguides by all electroplating Peer-reviewed

Y. Kato, Y. Matsuura, T. Nakamura, M. Miyagi

Trans.IEICE-C　J73-C-I　(6)　481-483　1990
Publisher:
ISSN： 0915-1893
LOSS CHARACTERISTICS OF CIRCULAR HOLLOW WAVE-GUIDES FOR INCOHERENT INFRARED LIGHT Peer-reviewed

Y MATSUURA, M SAITO, M MIYAGI, A HONGO

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION　6　(3)　423-427　1989/03

DOI： 10.1364/JOSAA.6.000423 　

ISSN： 0740-3232
SPECTRAL ATTENUATION OF INCOHERENT IR LIGHT IN CIRCULAR HOLLOW WAVE-GUIDES Peer-reviewed

M MIYAGI, Y MATSUURA, M SAITO, A HONGO

APPLIED OPTICS　27　(20)　4169-4170　1988/10

ISSN： 0003-6935

Show all ︎Show first 5

Misc. 323

中空光ファイバガスセルを用いた申赤外吸収分光法による高感度アンモニア計測—Highly sensitive ammonia gas measurement based on mid-infrared spectroscopy using hollow-optical-fiber gas cell—光・量子デバイス研究会・バイオメディカルフォトニクス応用

大村勇索, 木野彩子, 松浦祐司

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan / 光・量子デバイス研究会 [編]　2023　(1-6)　29-34　2023/03/27
Publisher: 電気学会
中赤外光音響分光法による血中成分分析—Blood component analysis by using mid-infrared photoacoustic spectroscopy—光・量子デバイス研究会・バイオメディカルフォトニクス応用

前野雅信, 木野彩子, 松浦祐司

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan / 光・量子デバイス研究会 [編]　2023　(1-6)　17-22　2023/03/27
Publisher: 電気学会
圧電トランスデューサを用いた中赤外光音響分光法による生体成分分析—Biological tissue analysis by mid-infrared photoacoustic spectroscopy using piezoelectric transducer—光・量子デバイス研究会・バイオメディカルフォトニクス応用

佐々木亮太, 木野彩子, 松浦祐司

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan / 光・量子デバイス研究会 [編]　2022　(1-6)　25-29　2022/03/28
Publisher: 電気学会
Side-polished hollow optical fiber coupler

加藤仁教, 大嶋佑介, 松浦祐司, 片桐崇史

応用物理学会春季学術講演会講演予稿集(CD-ROM)　68th　2021

ISSN： 2436-7613
Characterization of side-polished hollow optical fiber coupler

加藤仁教, 大嶋佑介, 松浦祐司, 片桐崇史

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

ISSN： 2436-7613
A compact mid-infrared spectroscopy system for healthcare applications based on a wavelength-swept, pulsed quantum cascade laser

Takuya Koyama, Naoto Shibata, Saiko Kino, Atsushi Sugiyama, Naota Akikusa, Yuji Matsuura

Sensors (Switzerland)　20　(12)　1-11　2020/06/02

DOI： 10.3390/s20123438 　

ISSN： 1424-8220
「チュウセキガイレーザーノチリョウ・シンダン・ヘルスケアオウヨウ」トクシュウゴウ

マツウラユウジ, コヤマタクヤ, カサハラリョウスケ

48　(6)　306-310　2020/06
Publisher: レーザー学会
ISSN： 0387-0200
Fabrication of side-polished hollow optical fiber coupler for mid-infrared laser

加藤仁教, 松浦祐司, 大嶋佑介, 片桐崇史

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　81st　2020

ISSN： 2436-7613
Mid-infrared ATR spectroscopy by swept-wavelength quantum cascade laser : Application to non-invasive blood glucose measurement

2019　(38)　13-17　2019/09/24
Publisher: 電気学会
Non-invasive blood lipid analysis using mid-infrared spectroscopy

19　(14)　1-6　2019/08/09
Publisher: レーザー学会研究委員会
Improvement of non-invasive blood glucose measurement system using fixed-wavelength quantum cascade lasers

2019　(1)　21-25　2019/03/04
Publisher: 電気学会
Measurement of Glucose in Whole Blood by Mid-Infrared Spectroscopy

47　(3)　169-172　2019/03
Publisher: レーザー学会
ISSN： 0387-0200
中赤外光を用いた診断・ヘルスケアモニタリング : 量子カスケードレーザーを用いた無侵襲血糖値測定

松浦祐司, 小山卓耶

光アライアンス / 光アライアンス編集委員会編　29　(11)　36-40　2018/11
Publisher: 日本工業出版
ISSN： 0917-026X
Whole Blood Glucose Measurement by Mid-infrared ATR Spectroscopy

2018　(53)　21-25　2018/09/25
Publisher: 電気学会
Non-invasive measurement of blood glucose based on mid-infrared ATR spectroscopy for measurement of earlobes

2018　(53)　27-31　2018/09/25
Publisher: 電気学会
Non-invasive Blood Glucose Measurement Using Quantum Cascade Lasers with Discrete Wavelengths

18　(14)　21-24　2018/08/03
Publisher: レーザー学会研究委員会
中空光ファイバを用いた中赤外分光システムによる非侵襲血糖値測定

松浦祐司

応用物理　87　(3)　171-174　2018/03
A feasibility study of three-dimensional photoacoustic imaging of hidden dental caries for a fiber-based imaging system

LIETH Thomas, LIETH Thomas, KOYAMA Takuya, KATAGIRI Takashi, MATSUURA Yuji

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　79th　2018

ISSN： 2758-4704
中赤外光を用いたヘルスケア機器開発－非侵襲血糖測定システムの現状とこれから－

松浦祐司

OplusE　39　(11)　1060-1064　2017/11
Publisher: アドコム・メディア
ISSN： 0911-5943
Ex-vivo photoacoustic imaging of hidden dental caries

2017　(65)　9-13　2017/09/25
Publisher: 電気学会
光ファイバーを用いた全光学式光音響イメージングプローブ

松浦祐司

OPTRONICS　(9)　72-75　2017/09
Multi-element hollow-core anti-resonant fiber for infrared thermal imaging

117　(197)　33-37　2017/08/31
Publisher: 電子情報通信学会
ISSN： 0913-5685
Photoacoustic Imaging System for Detection of Hidden Dental Caries

17　(13)　15-19　2017/08/04
Publisher: レーザー学会
光音響法による不顕性う蝕イメージング

小山卓耶, 柿野聡子, 松浦祐司

超音波テクノ　29　(5)　86-89　2017/05
光ファイバ型音響センサを用いた全光学式光音響イメージングプローブ

関淳, 片桐崇史, 松浦祐司

超音波テクノ　29　(5)　82-85　2017/05
炭酸ガスレーザー光伝送用中空光ファイバー

松浦祐司

日本レーザー医学会誌　38　(2)　82-86　2017/04
Publisher: Japan Society for Laser Surgery and Medicine
DOI： 10.2530/jslsm.jslsm-38_0010 　

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<p>Hollow optical fibers have a tube structure in contrast to common glass-optical fibers made of glass wire and light propagates in the hollow core. Therefore, the hollow optical fiber can transmit mid-infrared light including CO₂ laser light that cannot be delivered by common glass fibers because of the glass absorption. Hollow optical fibers are usually based on glass capillary and a metal film and a polymer film that is transparent in the mid-infrared are formed on the inside of the capillary. The polymer film enhances reflection at a targeted wavelength region by optical interference effect and this reduces the transmission loss of the fiber. A common silver plating is usually used for metal film deposition and a polymer solution is injected into the capillary and dried to from a polymer film. Fabricated hollow optical fibers for CO₂ laser light with an inner diameter of 0.7 mm and a length of 1 m show transmission higher than 90% when the fiber is straight. When bending the fiber, although the transmission is lowered, the fiber keeps transmission high enough for clinical applications.</p>
IMPROVEMENT OF TRANSMISSION PROPERTIES OF VISIBLE PILOT BEAM FOR A RUGGED HOLLOW FIBERS DESIGNED FOR Er:YAG LASER DELIVERY (光・量子デバイス研究会・International Symposium on Biomedical Optics (バイオメディカルフォトニクス応用))

Iwai Katsumasa, Takaku Hiroyuki, Miyagi Mitsunobu, Shi Yi-Wei, Zhu Xiao-Song, Matsuura Yuji

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan　2017　(1)　47-50　2017/03/06
Publisher: 電気学会
Analysis of propagation properties of terahertz hollow-optical fiber by using time-domain spectroscopy and application for THz wave remote spectroscopy (光・量子デバイス研究会・International Symposium on Biomedical Optics (バイオメディカルフォトニクス応用))

Ito Kosei, Katagiri Takashi, Matsuura Yuji

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan　2017　(1)　41-45　2017/03/06
Publisher: 電気学会
Ultraviolet spectroscopic breath analysis using hollow-optical fiber as gas cell (光・量子デバイス研究会・International Symposium on Biomedical Optics (バイオメディカルフォトニクス応用))

Iwata Takuro, Katagiri Takashi, Matsuura Yuji

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan　2017　(1)　37-40　2017/03/06
Publisher: 電気学会
Fabrication of bundle-structured tube-leaky optical fibers for infrared thermal imaging (光・量子デバイス研究会・International Symposium on Biomedical Optics (バイオメディカルフォトニクス応用))

Kobayashi Takuya, Katagiri Takashi, Matsuura Yuji

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan　2017　(1)　31-34　2017/03/06
Publisher: 電気学会
Fabrication of hollow optical fiber for terahertz wave based on dielectric film tube

116　(455)　21-25　2017/02/16
Publisher: 電子情報通信学会
ISSN： 0913-5685
Fabrication of hollow optical fiber for terahertz wave based on dielectric film tube

116　(456)　23-27　2017/02/16
Publisher: 電子情報通信学会
ISSN： 0913-5685
Fabrication of hollow optical fiber for terahertz wave based on dielectric film tube

116　(457)　33-37　2017/02/16
Publisher: 電子情報通信学会
ISSN： 0913-5685
Terahertz spectral imaging based on time-domain spectroscopy with hollow optical fiber

116　(375)　41-45　2016/12/19
Publisher: 電子情報通信学会
ISSN： 0913-5685
遠赤外光を用いた非侵襲血糖測定システムの開発

松浦祐司

糖尿病診療マスター　14　(12)　922-926　2016/12

DOI： 10.11477/mf.1415200560 　
気道内局所的CO₂濃度計測のための赤外光ファイバプローブ (光・量子デバイス研究会・バイオメディカルフォトニクス応用)

飯田猛, 片桐崇史, 松浦祐司

電気学会研究会資料. OQD = The papers of technical meeting on optical and quantum devices, IEE Japan　2016　(66)　33-36　2016/09/26
Publisher: 電気学会
Detection of acupuncture points by impedance vector measurement and evaluation of optical stimulation effect for low-level laser therapy

16　(18)　23-28　2016/08/05
Publisher: レーザー学会
Infrared thermal imaging using tube-leaky fiber bundle

2016　(27)　17-20　2016/03/07
Publisher: 電気学会
Breath spectroscopic analysis with ultraviolet gas-spectroscopy system using hollow optical fiber gas cell

2016　(27)　33-36　2016/03/07
Publisher: 電気学会
B-13-2 High sensitivity spectroscopy system for gas analysis using quantum cascade laser and hollow-optical fiber gas cell

Yaegashi Keisuke, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2016　(2)　423-423　2016/03/01
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-5 Evaluation of transmission modes in terahertz hollow-optical fiber by using time-domain spectroscopy

Ito Kosei, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2016　(2)　426-426　2016/03/01
Publisher: The Institute of Electronics, Information and Communication Engineers
BI-8-3 Non-invasive blood glucose measurement by using hollow-optical fiber probe

Matsuura Yuji, Kino Saiko

Proceedings of the IEICE General Conference　2016　(2)　"SS-124"-"SS-125"　2016/03/01
Publisher: The Institute of Electronics, Information and Communication Engineers
医療用光ファイバとその応用

松浦祐司

光アライアンス　27　(1)　1-6　2016/01
Publisher: 日本工業出版
ISSN： 0917-026X
光をあてるだけで血糖値がわかる－赤外分光法を用いた非侵襲血糖値測定の試み－

松浦祐司

翠巒　30　(1)　43-46　2016/01
Mode analysis of terahertz hollow fiber using time-domain spectroscopy

115　(387)　99-103　2015/12/21
Publisher: 電子情報通信学会
ISSN： 0913-5685
Optical-fiber probe for endoscopic photoacoustic imaging : High resolution imaging with ultra-thin hollow optical fibers

2015　(49)　29-33　2015/09/28
Publisher: 電気学会
Detection of blood in dental root canal by using time-frequency analysis of photo acoustic signal

2015　(49)　35-37　2015/09/28
Publisher: 電気学会
Laser-induced breakdown spectroscopy for dental diagnosis and therapeutic applications for early caries

2015　(20)　21-26　2015/03/02
Publisher: 電気学会
Noninvasive blood glucose measurement using multiple reflection infrared ATR fiber probe

2015　(20)　27-31　2015/03/02
Publisher: 電気学会
C-3-17 Hollow Optical Fibers and Their Medical Applications

Matsuura Yuji

Proceedings of the IEICE General Conference　2015　(1)　141-141　2015/02/24
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-1 Fabrication of low loss hollow-waveguide gas cell by reactive sputtering

Hasebe Shogo, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2015　(2)　484-484　2015/02/24
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-2 Terahertz wave beam splitter based on waveguide coupler : Structure design by beam propagation method

Ito Takuma, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2015　(2)　485-485　2015/02/24
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-36 Reflectance spectral imaging by using hollow optical fibers and infrared tunable laser

Huang Chenhui, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2015　(2)　519-519　2015/02/24
Publisher: The Institute of Electronics, Information and Communication Engineers
Raman image transmission by using hollow optical fiber bundle

INOUE Satomi, KATAGIRI Takashi, Matsuura Yuji

Technical report of IEICE. OPE　114　(453)　51-55　2015/02/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Raman imaging is an effective method for label-free and noninvasive imaging of biological samples. Recently Raman imaging has been applied for biomedical analysis and some kind of fiber probe are considered for in vivo measurement. In this report, we constructed high speed Raman imaging system by using a hollow fiber bundle and a band pass filter. The result of the Raman imaging is described.
Raman image transmission by using hollow optical fiber bundle

INOUE Satomi, KATAGIRI Takashi, Matsuura Yuji

Technical report of IEICE. OCS　114　(451)　35-39　2015/02/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Raman imaging is an effective method for label-free and noninvasive imaging of biological samples. Recently Raman imaging has been applied for biomedical analysis and some kind of fiber probe are considered for in vivo measurement. In this report, we constructed high speed Raman imaging system by using a hollow fiber bundle and a band pass filter. The result of the Raman imaging is described.
B-13-18 Fabrication of long lengths of hollow optical fiber bundles

Inoue Satomi, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2014　(2)　305-305　2014/09/09
Publisher: The Institute of Electronics, Information and Communication Engineers
Development of innovative photoacoustic microscopy with application of transparent piezo-electronic element

Yoshifumi Saijo, Yuji Matsuura, Katsuyoshi Washio

Transactions of Japanese Society for Medical and Biological Engineering　52　(0)　56-SY-57　2014/08/17
Publisher: Japan Soc. of Med. Electronics and Biol. Engineering
DOI： 10.11239/jsmbe.52.SY-56 　

ISSN： 1347-443X 1881-4379
光音響イメージングによるミクロレベルの組織血流評価

西條芳文, 佐藤みか, 山崎玲奈, 長岡亮, 鷲尾勝由, 松浦祐司

超音波医学　41　(Suppl.)　S203-S203　2014/04/15
Publisher: (公社)日本超音波医学会
ISSN： 1346-1176
B-13-23 Development of gas analysis system for breath analysis using hollow waveguide and quantum cascade laser

Suzuki Hibiki, Kino Saiko, Matsuura Yuji

Proceedings of the IEICE General Conference　2014　(2)　519-519　2014/03/04
Publisher: The Institute of Electronics, Information and Communication Engineers
Terahertz ATR spectroscopy using hollow fiber probe

2014　(15)　33-38　2014/03/03
Publisher: 電気学会
Hollow Fiber Probe for Surface-Enhanced Raman Scattering Detection

NAGAOKA Masahiro, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OPE　113　(448)　179-183　2014/02/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Surface-enhanced Raman scattering (SERS) is powerful tool for biosensing because it can analyze materials sensitively. In this research, for flexible SERS measurement, we fabricated hollow fiber based Raman probe, which formed gold nanostructure on the fiber tip by photochemical deposition or sputtering. Because sputtering allows to form stable gold nanostructures, it produces higher SERS intensity and reproducibility than photochemical deposition.
Hollow Fiber Probe for Surface-Enhanced Raman Scattering Detection

NAGAOKA Masahiro, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OCS　113　(446)　129-133　2014/02/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Surface-enhanced Raman scattering (SERS) is powerful tool for biosensing because it can analyze materials sensitively. In this research, for flexible SERS measurement, we fabricated hollow fiber based Raman probe, which formed gold nanostructure on the fiber tip by photochemical deposition or sputtering. Because sputtering allows to form stable gold nanostructures, it produces higher SERS intensity and reproducibility than photochemical deposition.
知っておきたいファイバーのこと

松浦祐司

Medical Photonics　18　(1)　50-51　2014/01/01
2P5-4 Three-dimensional Photoacoustic Imaging of Chicken Embryo Vasculature(Poster Session)

Sato Mika, Yamazaki Rena, Watanabe Yuji, Nakamura Harukazu, Matsuura Yuji, Saijo Yoshifumi

Proceedings of Symposium on Ultrasonic Electronics　34　307-308　2013/11/20
Publisher: Steering committee of symposium on ultrasonic electronics
ISSN： 1348-8236
Er:YAG Laser-Induced Liquid Jet System Based on Hollow Optical Fiber

41　(11)　946-951　2013/11
Publisher: レーザー学会
ISSN： 0387-0200
Direct Raman imaging by using hollow fiber bundle

INOUE Satomi, KATAGIRI Takashi, MATSUURA Yuji

2013　(31)　13-16　2013/09/27
Glass Hollow Waveduide for Delivery of High-Powered Er : YAG Laser

KOBAYASHI Shun, KATAGIRI Takashi, MATSUURA Yuji

2013　(31)　27-31　2013/09/27
Proposal of all-dielectric hollow optical fiber bundle for infrared spectral imaging

Kobayashi Shun, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2013　(1)　158-158　2013/09/03
Publisher: The Institute of Electronics, Information and Communication Engineers
FT-IR reflectance spectral imaging by hollow-optical fiber bundle

Huang Chenhui, Kino Saiko, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2013　(2)　361-361　2013/09/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow-fiber based terahertz ATR probe

Hotta Kosuke, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2013　(2)　362-362　2013/09/03
Publisher: The Institute of Electronics, Information and Communication Engineers
中空光ファイバを用いた光バイオプシーシステム

松浦祐司

光アライアンス　24　(9)　20-24　2013/09/01
Hollow optical fiber bundle for Raman spectral imaging

KATAGIRI Takashi, MATSUURA Yuji

446　15-19　2013/07/27
B-13-29 Optimization ofhollow-optical-fiber gas cell for UV spectroscopy

Dessen YUki, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2013　(2)　494-494　2013/03/05
Publisher: The Institute of Electronics, Information and Communication Engineers
Development of laser-induced liquid jet with Er:YAG laser

KOMURA Yuji, KATAGIRI Takashi, MATSUURA Yuji

2013　(11)　33-38　2013/03/04
Hollow-optical fiber probe for non-invasive measurement of blood glucose by infrared spectroscopy

TANAKA Yuki, KINO Saiko, MATSUURA Yuji

2013　(11)　21-26　2013/03/04
Publisher: 電気学会
Fabrication of hollow waveguides with multilayered cladding for infrared cavity-ring-down spectroscopy

ICHIKAWA Ryo, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OPE　112　(296)　31-35　2012/11/09
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Cavity-ring-down spectroscopy (CRDS) enables highly sensitive gas analysis. In this report, we propose an infrared CRDS system with a hollow waveguide as a micro-volume gas cell. In this paper, we report on fabrication of low-loss hollow waveguides with multilayered cladding.
Fabrication of hollow waveguides with multilayered cladding for infrared cavity-ring-down spectroscopy

ICHIKAWA Ryo, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OME　112　(295)　31-35　2012/11/09
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Cavity-ring-down spectroscopy (CRDS) enables highly sensitive gas analysis. In this report, we propose an infrared CRDS system with a hollow waveguide as a micro-volume gas cell. In this paper, we report on fabrication of low-loss hollow waveguides with multilayered cladding.
Sensitivity improvement of hollow optical fiber Raman probe using surface-enhanced Raman scattering

NAGAOKA Masahiro, KATAGIRI Takashi, MATSUURA Yuji

2012　(25)　17-21　2012/09/24
Optical fiber probe for all-optical photoacoustic measurement

MIIDA Yusuke, MATSUURA Yuji

2012　(25)　33-37　2012/09/24
Measurement of blood glucose by infrared spectroscopy using hollow-optical fiber probe

TANAKA Y., KINO S., MATSUURA Y.

430　19-23　2012/09/07
B-13-21 Fabrication of all-dielectric hollow optical fiber for infrared light

Kobayashi Shun, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2012　(2)　320-320　2012/08/28
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-32 Hollow waveguide with multiple dielectric layer for infrared cavity-ring-down spectroscopy

Ichikawa Ryo, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2012　(2)　331-331　2012/08/28
Publisher: The Institute of Electronics, Information and Communication Engineers
Surface Plasmon Resonance Based Refractive Index Sensor Using Bragg Fiber

MA Lin, KATAGIRI Takashi, MATSUURA Yuji

41　(7)　376-380　2012/07/10
Publisher: 応用物理学会分科会日本光学会
ISSN： 0389-6625
Optical fiber probe for laser breakdown spectroscopy and analysis of soil salinity

SEKI Ryusuke, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OFT　112　(54)　51-54　2012/05/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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A hollow-optical fiber probe for laser breakdown spectroscopy is developed for quantitative analysis of soil salinity. A glass cap for focusing and sealing is attached on the distal end of hollow fiber when measuring liquid samples and the fiber end is open for solid samples. Salinity is analyzed by detecting plasma emission spectra of Na. For analysis of soil samples, the lowest detectable concentration of 0.01% is achieved by generating plasma in Ar atmosphere.
Hollow-optical fiber bundle consists of dielectric thin film

KOBAYASHI Shun, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OFT　112　(54)　55-59　2012/05/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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An all-dielectric hollow-optical fiber that is fabricated without metal plating process is proposed. This fiber consists of dielectric thin film and the mechanical strength for practical use is obtained by stacking multiple capillary in honeycomb structure. The fiber is manufactured by using glass drawing technique and the thickness of glass wall is around 1 μm. The attenuation is lowered by interference effect of dielectric wall and fibers with lower losses than those of conventional hollow-optical fibers with metal layer are successfully fabricated.
C-3-67 Fabrication of ultra low-loss hollow waveguide for infrared cavity-ring-down spectroscopy

Ichikawa Ryo, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2012　(1)　216-216　2012/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
BI-4-5 Basics and Medical Applications of Hollow Optical Fibers

Matsuura Yuji

Proceedings of the IEICE General Conference　2012　(2)　"SS-113"-"SS-114"　2012/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Raman spectral imaging with thin hollow optical fiber bundle

TOMIYAMA Tatsuhiro, KATAGIRI Takashi, MATSUURA Yuji

2012　(19)　21-26　2012/03/05
Optical trapping Raman measurement of single bio-particle using hollow optical fiber

MORISAKI Y, KATAGIRI T, MATSUURA Y

2012　(19)　27-31　2012/03/05
Self-focus (社)レーザー学会学術講演会第32回年次大会開催報告

松浦祐司

レーザー研究　40　(3)　206-211　2012/03
Publisher: レーザー学会
ISSN： 0387-0200
1P1-1 Photoacoustic imaging of knee cartilage mouse using а semiconductor laser(Poster Session)

Izumi Takuya, Miida Yusuke, Nagaoka Ryo, Sato Mika, Matsuura Yuji, Hagiwara Yoshihiro, Saijo Yoshifumi

Proceedings of Symposium on Ultrasonic Electronics　33　(0)　19-20　2012
Publisher: Institute for Ultrasonic Elecronics
DOI： 10.24492/use.33.0_19 　

ISSN： 1348-8236
Infrared Spectral Measurement of Saline Concentration Using Attenuated-Total-Reflection Probe Based on Hollow Optical Fiber

TANAKA Yuki, KINO Saiko, MATSUURA Yuji

The Review of Laser Engineering　39　(12)　938-941　2011/12/15
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.39.938 　

ISSN： 0387-0200

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An infrared spectroscopy system based on hollow-optical fiber probes for the measurement of NaCl
Hollow optical fibers for medical applications

MATSUURA Yuji

応用物理　80　(12)　1078-1081　2011/12/10
Publisher: 応用物理学会
ISSN： 0369-8009
Development of hollow optical fiber tweezers for Raman spectroscopy of bio-particles

MORISAKI Y, KATAGIRI T, MATSUURA Y

417　11-15　2011/09/07
B-13-7 Reduction of bending losses of capillary optics for X ray

Iwai Tatsuya, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2011　(2)　344-344　2011/08/30
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-8 Fabrication of hollow optical fiber based on polymer thin-film tube

Sato Shunsuke, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2011　(2)　345-345　2011/08/30
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-10 Long-path, small-volume hollow-fiber gas cell for breath analysis

Takahashi Yusuke, Kino Saiko, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2011　(2)　347-347　2011/08/30
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-25 Raman imaging of biomedical tissues with thin hollow optical fiber bundle

Tomiyama Tatsuhiro, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2011　(1)　147-147　2011/08/30
Publisher: The Institute of Electronics, Information and Communication Engineers
Welcome to Sendai for The 32nd Annual Meeting

MATSUURA Yuji

39　(8)　577-577　2011/08/15

ISSN： 0387-0200
Photonics West BiOS 2011

32　(1)　88-91　2011/04/30

ISSN： 0288-6200
中空光ファイバを用いた光音響イメージングと光音響効果の色依存性

小池秀幸, 熊谷和敏, 和泉拓哉, 三井田佑輔, 穂積直裕, 松浦祐司, 西條芳文

超音波医学　38　S463　2011/04/15

ISSN： 1346-1176
Pulse Oximetry of Arterial Blood in Dental Pulp using Optical Fiber Probe

KUSHIBIKI Shinya, KATAGIRI Takashi, MATSUURA Yuji, KAKINO Satoko

2011　(10)　9-13　2011/03/07
Publisher: The Japan Society of Mechanical Engineers
A Raman cell based on hollow optical fiber for breath analysis

OKITA Yoshinari, KATAGIRI Takashi, MATSUURA Yuji

2011　(10)　29-34　2011/03/07
B-13-45 Hollow optical fiber Raman gas cell for breath analysis : Optimization of optical cavity

Okita Yoshinari, Katagiri Takashi, Matsuura Yuji

Proceedings of the IEICE General Conference　2011　(2)　521-521　2011/02/28
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-46 Infrared Spectral Imaging by Hollow Optical-fiber Bundle

Huang Chenhui, Matsuura Yuji

Proceedings of the IEICE General Conference　2011　(2)　522-522　2011/02/28
Publisher: The Institute of Electronics, Information and Communication Engineers
Endoscopic Optical Biopsy System Based on Hollow Optical Fibers

MATSUURA Yuji

The Review of laser engineering　39　(2)　118-122　2011/02/15
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.39.118 　

ISSN： 0387-0200

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Optical biopsy systems based on hollow-core fi beroptics are proposed and developed for endoscopic
「医療用光ファイバー, 周辺装置およびその応用技術」の特集によせて

松浦祐司

日本レーザー医学会誌 = The Journal of Japan Society for Laser Medicine　31　(4)　406-406　2011/01/31

ISSN： 0288-6200
Basics of Optical Fibers for Medical Applications

MATSUURA Yuji

日本レーザー医学会誌　31　(4)　407-412　2011/01/31

DOI： 10.2530/jslsm.31.407 　

ISSN： 0288-6200
Raman Spectral Imaging with Hollow Optical Fiber Bundle

TOMIYAMA Tatsuhiro, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OME　110　(276)　17-21　2010/11/05
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Raman spectral imaging is a promising candidate as a noninvasive, label free imaging method for medical diagnostics. In this report, we describe the fabrication process of the hollow optical fiber bundle for image transmission, and the result of Raman spectral imaging using fabricated bundle.
Raman Spectral Imaging with Hollow Optical Fiber Bundle

TOMIYAMA Tatsuhiro, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OPE　110　(277)　17-21　2010/11/05
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Raman spectral imaging is a promising candidate as a noninvasive, label free imaging method for medical diagnostics. In this report, we describe the fabrication process of the hollow optical fiber bundle for image transmission, and the result of Raman spectral imaging using fabricated bundle.
Laser-induced liquid jet with Er:YAG laser pulse

WATANABE Tomonori, FUKUTOMI Mariko, MATSUURA Yuji

OQD　2010　(32)　25-30　2010/09/27
Development of devices for Raman spectroscopy using hollow optical fibers and their medical applications

KATAGIRI T, OKITA Y, MORISAKI Y, TOMIYAMA T, MATSUURA Y

402　25-29　2010/09/03
B-13-19 Fabrication of hollow optical fiber for terahertz wave using polyethylene as dielectric layer

Sato Shunsuke, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2010　(2)　326-326　2010/08/31
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-20 Optical trapping raman spectroscopy using hollow optical fiber

Morisaki Yoshitake, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2010　(2)　327-327　2010/08/31
Publisher: The Institute of Electronics, Information and Communication Engineers
深紫外光伝送用中空光ファイバ

松浦祐司

光技術コンタクト　48　(8)　368-373　2010/08
Publisher: 日本オプトメカトロニクス協会
ISSN： 0913-7289
中空光ファイバの基礎

松浦祐司

Medical Photonics　1　(2)　11-15　2010/07
Publisher: オプトロニクス社
中空光ファイバの医療応用

松浦祐司

Medical Photonics　1　(2)　16-21　2010/07
Publisher: オプトロニクス社
生体観察用光音響顕微鏡のための高速スキャンシステム開発

小池秀幸, 熊谷和敏, 穂積直裕, 植村努, 松浦祐司, 西條芳文

超音波医学　37　S347　2010/04/15

ISSN： 1346-1176
BS-6-5 Hollow-core optical fibers for endoscopic diagnosis and therapy

Matsuura Yuji, Watanabe Tomonori, Kino Saiko

Proceedings of the IEICE General Conference　2010　(2)　"S-116"-"S-117"　2010/03/02
Publisher: The Institute of Electronics, Information and Communication Engineers
東北大学大学院医工学研究科

松浦祐司

日本レーザー医学会誌 = The Journal of Japan Society for Laser Medicine　30　(4)　450-451　2010/01/30

ISSN： 0288-6200
Surface plasmon resonance based refractive index sensor using Bragg fiber

MA Lin, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OME　109　(283)　45-48　2009/11/06
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We proposed a surface-plasmon resonance (SPR) sensor for refractive index measurement using a Bragg fiber. In this geometry, an HE_<11>-like Bragg fiber core mode is designed to excite the surface plasmonic wave. It is shown that reduction of core size enables measurement of refractive index significantly lower than that of the silica core. This makes the device useful for biosensing or chemical sensing applications handling aqueous samples. The proposed sensor is fabricated using a unique rf-sputtering method, and SPR-induced extinction of more than 20dB is observed.
Surface plasmon resonance based refractive index sensor using Bragg fiber

MA Lin, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OPE　109　(284)　45-48　2009/11/06
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We proposed a surface-plasmon resonance (SPR) sensor for refractive index measurement using a Bragg fiber. In this geometry, an HE_11-like Bragg fiber core mode is designed to excite the surface plasmonic wave. It is shown that reduction of core size enables measurement of refractive index significantly lower than that of the silica core. This makes the device useful for biosensing or chemical sensing applications handling aqueous samples. The proposed sensor is fabricated using a unique rf-sputtering method, and SPR-induced extinction of more than 20dB is observed.
B-13-2 A Proposal for Rapid Manufacturing of Microstructured Polymer Optical Fiber by Selective Laser Sintering

Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2009　(2)　291-291　2009/09/01
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-3 Fabrication of small-bore hollow optical fiber with inner dielectric layer for THz wave

Tsunokawa Yoshinori, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2009　(2)　292-292　2009/09/01
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-4 Raman gas cell based on hollow optical fiber

Okita Yoshinari, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2009　(2)　293-293　2009/09/01
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-5 Optimization of fiber-optic based system for diagnosis of dental pulp vitality using detection of transmitted light

Kushibiki Shinya, Kakino Satoko, Katagiri Takashi, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2009　(2)　294-294　2009/09/01
Publisher: The Institute of Electronics, Information and Communication Engineers
光量調節機能を付与した新型透過型光電脈波装置による外傷歯の歯髄診断

柿野聡子, 三輪全三, 高木裕三, 松浦祐司, 山田響子, 的場一成

小児歯科学雑誌　47　(2)　277-277　2009/04/25

ISSN： 0583-1199
B-13-3 Dental pulp vitality test using hollow-fiberoptics bundle for thermal imaging

Naito Keisuke, Matsuura Yuji

Proceedings of the IEICE General Conference　2009　(2)　491-491　2009/03/04
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-2 Fabrication of Ultra-thin Silver Hollow Fiber for infrared transmission

Iwai Katsumasa, Itagaki Shizuka, Ando Miho, Miyagi Mitsunobu, Shi Yi-Wei, Matsuura Yuji

Proceedings of the IEICE General Conference　2009　(2)　490-490　2009/03/04
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-1 X-ray fluorescent analysis with metal hollow optical fibers for soft X ray

Maeda Shingo, Matsuura Yuji

Proceedings of the IEICE General Conference　2009　(2)　489-489　2009/03/04
Publisher: The Institute of Electronics, Information and Communication Engineers
Dental pulp diagnosis of the traumatized deciduous and young permanent teeth by transmitted-light plethysmopgraphy

KAKINO Satoko, MIWA Zenzo, TAKAGI Yuzo, MATSUURA Yuji, MATOBA Kazunari

2009　(15)　49-52　2009/02/14
Development of the Optical Biopsy Techniques

SATO Hidetoshi, SUZUKI Toshiaki, ANDRIANA Bibin. B, TOI Masakazu, SHIMOSEGAWA Toru, ASAKURA Toru, MATSUURA Yuji, KOMACHI Yuichi, KANAI Gen'ichi, MASUTANI Koji, URA Nobuo, OZAKI Yukihiro

2009　(15)　1-5　2009/02/14
Simultaneous irradiation of dual-wavelength laser for efficient ablation of hard tissues

WATANABE Tomonori, MATSUURA Yuji

2009　(15)　39-43　2009/02/14
Hollow Optical Fibers for Delivery of Terahertz Wave

MATSUURA Yuji

Japanese journal of optics　38　(2)　89-95　2009/02/10
Publisher: 応用物理学会分科会日本光学会
ISSN： 0389-6625
Simultaneous radiation of Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues

WATANABE T, MATSUURA Y

377　15-20　2008/09/12
B-13-28 Transmission properties of metal-hollow optical fiber for terahertz wave : Investigation on polarization dependent losses

Tsunokawa Yoshinori, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　282-282　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-27 Metal hollow optical fibers for soft X ray : Reduction of bending losses

Maeda Shingo, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　281-281　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-26 Radiation of Er:YAG and Ho:YAG lasers for highly efficient ablation of hard tissues

Watanabe Tomonori, Iwai Katsumasa, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　280-280　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-25 Hollow optical fiber bundles for thermal imaging

Naito Keisuke, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　279-279　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-24 Fabrication of 100-μm-bore Hollow Fiber for Infrared laser

Iwai Katsumasa, Miyagi Mitsunobu, Shi Yi-Wei, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　278-278　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-10 Surface plasmon resonance sensor using tapered Bragg fiber

Ma Lin, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2008　(2)　264-264　2008/09/02
Publisher: The Institute of Electronics, Information and Communication Engineers
Flexible fiber-optics probes for raman and FT-IR remote spectroscpy (vol 13, pg 1704, 2007)

Y. Matsuura, S. Kino, E. Yokoyama, T. Katagiri, H. Sato, H. Tashiro

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS　14　(2)　522-522　2008/03

ISSN： 1077-260X
Hollow-core optical fibers for endoscopic diagnosis and therapy

MATSUURA Yuji, WATANABE Tomonori, KINO Saiko

2008　(1)　83-87　2008/02/08
ラマン分光法を用いた生体組織のスペクトル計測と分類

光岡広樹, 山本裕子, 大嶋祐介, 丸山篤史, 鈴木利明, 盛田伸一, 松浦祐司, 勝本之晶, 佐藤英俊

日本分析化学会年会講演要旨集　57th　2008
Fabrication of 100-μm-bore hollow fiber for infrared transmission

K. Iwai, Y. W. Shi, M. Miyagi, X. S. Zhu, Y. Matsuura

Proc. SPIE　6852　2008

DOI： 10.1117/12.767934 　

ISSN： 1605-7422
Thin hollow glass waveguide for near IR radiation delivery

M. Nemec, H. Jelinkova, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Proc. SPIE　6852　2008

DOI： 10.1117/12.761837 　

ISSN： 1605-7422
Dual-wavelength laser irradiation through hollow optical fiber for hard tissue ablation

T. Watanabe, K. Iwai, Y. Matsuura

Proc. SPIE　6852　2008

DOI： 10.1117/12.761421 　

ISSN： 1605-7422
Vaporization and Coagulation Effects Inside Biological Tissue by Using Simultaneous Radiation of Dual-Wavelength-Infrared Laser Lights

IWAI K, WATANABE T, MIYAGI M, MATSUURA Y

364　19-23　2007/08/31
C-3-32 Fabrication of Ultra-thin Hollow Silver Fiber

Iwai Katsumasa, Shiga Kanako, Miyagi Mitsunobu, Shi Yi-Wei, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2007　(1)　155-155　2007/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-72 Suppression of speckle in hollow-kaleidoscopic beam homogenizer

Naito Keisuke, Shishido Mitsunobu, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2007　(1)　195-195　2007/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-14 Hollow optical fibers for terahertz spectroscopy

Takeda Eriko, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2007　(2)　313-313　2007/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-15 Optical hollow fibers with inner metal coating for soft X-ray

Maeda Shingo, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2007　(2)　314-314　2007/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
BS-9-2 Hollow-Optical Fiber Raman probe for Optical Biopsy

Yokoyama Eriko, Matsuura Yuji, Katagiri Takashi, Sato Hidetoshi, Tashiro Hideo

Proceedings of the Society Conference of IEICE　2007　(2)　"S-96"-"S-97"　2007/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
Flexible hollow optical fiber for terahertz wave

MATSUURA Yuji, TAKEDA Eriko

Technical report of IEICE. OFT　107　(191)　39-43　2007/08/16
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Hollow optical fibers for terahertz wave delivery are designed and fabricated. Fibers with silver inner coating work as metal hollow waveguides and experimental results show that transmission losses are 7.5-8.0dB/m at 200-μm wavelength for 1-mm diameter fibers. This measured losses coincide well with theoretical losses of TE_11 mode that was expected as a dominant mode in metal hollow fibers. A dielectric-loaded, metal hollow waveguides are fabricated by inserting a polyethylene film with silver coating into a plastic tubing. Measured losses of the dielectric-loaded fiber at 200μm are 1.3dB for 3.0-mm-bore hollow optical fibers. Bending losses are also low in dielectric loaded fibers and additional losses due to bending are around 1 dB. Although the fibers have relative large diameter of 3mm, they are flexible and the minimum bending radius is around 10cm.
B-13-32 Er:YAG laser endoscope for urology : Laser irradiation experiments using hollow optical fibers

Watanabe Tomonori, Matsuura Yuji

Proceedings of the IEICE General Conference　2007　(2)　527-527　2007/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Er:YAG micro-preparation of hard dental tissue

T. Dostalova, H. Jelinkova, M. Nemec, P. Koranda, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

Proc. of SPIE　6425　2007

DOI： 10.1117/12.698148 　

ISSN： 1605-7422
Hollow infrared fiber with an inorganic inner coating layer with high durability

K. Iwai, Y. W. Shi, M. Miyagi, X. S. Zhu, Y. Matsuura

Proc. SPIE　6433　2007

DOI： 10.1117/12.724859 　

ISSN： 1605-7422
Simultaneous delivery of Er:YAG and Ho:YAG lasers by using a hollow optical fibers for endoscopic lithotripsy

K. Iwai, Y. Matsuura, M. Miyagi

Proc. SPIE　6433　2007

DOI： 10.1117/12.699794 　

ISSN： 1605-7422
Modification of Mid-infrared Radiation Spatial Structure Caused by COP/Ag Hollow Waveguide

M. Nemec, H. Jelinkova, M. Fibrich, P. Koranda, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Proc. SPIE　6433　2007

DOI： 10.1117/12.698140 　

ISSN： 1605-7422
Er:YAG laser mikro-preparace tvrdych zubnich tkani (Er:YAG laser - preparation of hard dental tissues

Dostalova T, Jelinkova H, Nemec M, Koranda P, Miyagi M, Iwai K, Shi Y, Matsuura Y

Prakt. Zub. Lek　55　37-42　2007
Development of Advanced Spectral Endoscope and Optical Biopsy Techniques

SATO Hidetoshi, TASHIRO Hideo, MATSUURA Yuji, SHIMOSEGAWA Toru, URA Nobuo, KANAI Gen'ichi

Japanese journal of optics　35　(10)　521-527　2006/10/10
Publisher: 応用物理学会分科会日本光学会
ISSN： 0389-6625
B-13-21 Dielectric-loaded hollow fiber for far-infrared and THz-wave delivery

Takeda Eriko, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2006　(2)　328-328　2006/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-22 Hollow optical-fiber probe for infrared spectroscopy : New fabrication method of dielectric-coated hollow-optical fiber

Watanabe Tomonori, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2006　(2)　329-329　2006/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-23 Raman spectrum measurement using hollow optical-fiber probe : Development of polycarbonate-based hollow optical fibers

Yokoyama Eriko, Matsuura Yuji, Katagiri Takashi, Sato Hidetoshi, Tashiro Hideo

Proceedings of the Society Conference of IEICE　2006　(2)　330-330　2006/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-80 Fabrication of Inorganic Material-Coated Hollow Fiber Tip

Iwai Katsumasa, Miyagi Mitsunobu, Shi Yi-Wei, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2006　(1)　202-202　2006/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Infrared Laser Lithotripsy by Using Hollow Fibers : In Vitro Experiment and System Proposal

IWAI K, MIYAGI M, SHI Y. W, MATSUURA Y, SAITO S, ARAI Y

351　13-17　2006/08/30
Generation of subwavelength beam by using a tapered Bragg fiber

MA Lin, MATSUURA Yuji

Technical report of IEICE. OFT　106　(211)　75-79　2006/08/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We demonstrate a possibility of generating subwavelength-sized beam by using a tapered Bragg fiber. Simulation results show that the tapered Bragg fiber with a core as small as half of the working wavelength confines light strongly within the core. 1μm-core tapered Bragg fibers with mode field diameters about 1.1μm for 0.85μm wavelength are successfully fabricated by a sputtering technique. The experiment results suggest that the transmission efficiencies and the qualities of generated beam are affected significantly by irregularities of Bragg multilayer. The high quality subwavelength beam can be generated by carefully selecting the film thickness of the multilayer structure and improving its uniformity.
Hollow optical fibers for medical applications : From X ray to terahertz wave

MATSUURA Yuji

2006　(18)　33-37　2006/05/31
Fabrication of tapered Bragg fibers and their transmission properties

MA Lin, KATAGIRI Takashi, MATSUURA Yuji

106　(54)　21-24　2006/05/12
Fabrication of tapered Bragg fibers and their transmission properties

MA Lin, KATAGIRI Takashi, MATSUURA Yuji

Technical report of IEICE. OPE　106　(54)　21-24　2006/05/12
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Fabrication of tapered silica-glass fibers with a Bragg multilayer cladding by a sputtering technique combining with a standard traveling burner tapering method is demonstrated. 1 μm-core Bragg tapers with mode field diameters about 1.1μm have been successfully fabricated. Simulation of the mode intensity profiles for both our devices and air cladding silica tapers have been done by beam propagation method. The results agree well with these of experiment ones. Our devices have good adiabaticity and they are insensitive to the surrounding environment. These ultra-small core Bragg fibers will be a candidate of the mode couplers for nanosized optical devices.
B-13-26 Fabrication and application of small-bore hollow fibers based on plastic tubing

Nakazawa Masayuki, Shi Yi-Wei, Matsuura Yuji, Iwai Katsumasa, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2006　(2)　510-510　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-27 Improvement of durability of hollow optical fiber for Q-switched Nd : YAG laser light

Tsuchiuchi Akio, Miyagi Mitsunobu, Matsuura Yuji

Proceedings of the IEICE General Conference　2006　(2)　511-511　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-36 Raman probe with tapered hollow waveguide

Narita Satoshi, Miyagi Mitsunobu, Matsuura Yuji

Proceedings of the IEICE General Conference　2006　(2)　520-520　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-37 THz-Wave Remote Spectroscopy using Optical Hollow Fibers

Itoh Takahiro, Miyagi Mitsunobu, Matsuura Yuji

Proceedings of the IEICE General Conference　2006　(2)　521-521　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-70 Development of high-resolution micro-Raman probe using hollow optical fiber

Katagiri Takashi, Komachi Yuichi, Tashiro Hideo, Matsuura Yuji, Sato Hidetoshi

Proceedings of the IEICE General Conference　2006　(1)　205-205　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
CS-13-2 Recent development of hollow optical fibers for medical applications

Matsuura Yuji

Proceedings of the IEICE General Conference　2006　(1)　"S-103"-"S-104"　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
Selective preparation of hard dental tissue -classical and laser treatments comparison

T. Dostalova, H. Jelinkova, M. Nemec, P. Koranda, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Proc. SPIE　6137　2006

DOI： 10.1117/12.647436 　

ISSN： 1605-7422
Medical application of 3 μm delivery waveguide system

M. Nemec, H. Jelinkova, P. Koranda, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Proc. SPIE　6083　2006

DOI： 10.1117/12.645893 　

ISSN： 1605-7422
Uniform polymer-film formation in hollow optical fiber by circulatory coating method

K. Iwai, M. Miyagi, Y. W. Shi, Y. Matsuura

Proc. SPIE　6083　2006

DOI： 10.1117/12.649404 　

ISSN： 1605-7422
Selective preparation of hard dental tissues in connection with composite materials

Dostalova T, Jelinkova H, Nemec M, Koranda P, Miyagi M, Iwai K, Shi Y, Matsuura Y

Prakt. Zub. Lek　54　48-53　2006
Hollow polycarbonate fiber for Er:YAG laser light delivery

M. Nakazawa, Y. W. Shi, Y. Matsuura, K. Iwai, M. Miyagi

Opt. Lett.　31　(10)　1373-1375　2006

DOI： 10.1364/OL.31.001373 　

ISSN： 0146-9592 1539-4794
Fluorescence Measurement under Irradiation of Vacuum-Ultraviolet Light Transmitted by Hollow Optical Fibers

MURATA Kousuke, MATSUURA Yuji, MIYAGI Mitsunobu

The transactions of the Institute of Electronics, Information and Communication Engineers. C　88　(12)　1233-1235　2005/12/01
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 1345-2827
B-13-9 Tapered Focusing Optics for Medical Hollow Fibers

Narita Satoshi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2005　(2)　368-368　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-10 Improvement of durability for laser-induced damage in aluminum hollow optical fibers

Tsuchiuchi Akio, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2005　(2)　369-369　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-11 Visible aiming beam transmission by plastic hollow optical fiber for medical applications

Nakazawa Masayuki, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2005　(2)　370-370　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-43 Fabrication of Uniform Optical Polymer-Coated Hollow Fibers : Improvement of Coating Method

Iwai Katsumasa, Miyagi Mitsunobu, Shi Yi-Wei, Matsuura Yuji

Proceedings of the Society Conference of IEICE　2005　(1)　187-187　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
C-14-11 THz-Wave Delivery by Dielectric-Coated Hollow Fiber

Itoh Takahiro, Matsuura Yuji, Miyagi Mitsunobu, Minamide Yasuaki, Itoh Hiromasa

Proceedings of the Society Conference of IEICE　2005　(1)　337-337　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
CS-2-5 Propagation Characteristics of Single-Mode Bragg Fibers

Katagiri Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2005　(1)　"S-21"-"S-22"　2005/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
06. Er:YAGレーザ光による結石破砕特性(平成16年度東北支部大会抄録, 支部大会抄録)

岩井克全, 石芸尉, 松浦祐司, 宮城光信, 斎藤誠一, 荒井陽一

生体医工学 : 日本エム・イー学会誌　43　(2)　328-328　2005/06/10
Publisher: 社団法人日本生体医工学会
ISSN： 1347-443X
07. 多波長のレーザ光を同時伝送可能な医療用赤外中空ファイバの製作(平成16年度東北支部大会抄録, 支部大会抄録)

伊藤健太郎, 石芸尉, 松浦祐司, 宮城光信

生体医工学 : 日本エム・イー学会誌　43　(2)　328-328　2005/06/10
Publisher: 社団法人日本生体医工学会
ISSN： 1347-443X
B-13-17 Soft X-ray Delivery by Metal Hollow Fibers

Oyama Tadaaki, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2005　(2)　481-481　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-18 Delivery of UV-Nd:YAG laser light by small-bore aluminum hollow fibers for use with endoscope

Murakami Daisuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2005　(2)　482-482　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-19 Delivery of High-Energy Multiwavelength Laser in Hollow Optical Fiber for Medical Applications

Ito Kentaro, Shi Yi Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2005　(2)　483-483　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-28 Fluorescence measurement under irradiation of vacuum UV light transmitted by hollow fibers

Murata Kousuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2005　(1)　198-198　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Fragmentation characteristics of various calculi evaluated by using hollow fibers for Er:YAG laser light

K. Iwai, Y. W. Shi, Y. Matsuura, M. Miyagi, S. Saito, Y. Arai, J. Sulc, H. Jelinkova

Proc. SPIE　14-22　2005

DOI： 10.1117/12.601855 　

ISSN： 1605-7422 0277-786X
Single-mode operation of silica-core Bragg fibers

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

326　35-38　2004/08/26
Single-mode operation of silica-core Bragg fibers

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　104　(261)　35-38　2004/08/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Bragg fibers with thin silica-core, below 10 μm diameter, were fabricated by using tapered fiber technology. The mode property of our fiber is considered with the help of transfer matrix method and a band diagram. We show that, in the case of our fiber structure, high-order TM and mixed modes are intercepted by the mode filtering of TM polarization band. In addition, it is found that the fiber supports HE_<11> mode and is able to be treated in single-mode when the light is exited by adiabatic taper shape.
Single-mode operation of silica-core Bragg fibers

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OCS　104　(259)　35-38　2004/08/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Bragg fibers with thin silica-core, below 10 μm diameter, were fabricated by using tapered fiber technology. The mode property of our fiber is considered with the help of transfer matrix method and a band diagram. We show that, in the case of our fiber structure, high-order TM and mixed modes are intercepted by the mode filtering of TM polarization band. In addition, it is found that the fiber supports HE_<11> mode and is able to be treated in single-mode when the light is exited by adiabatic taper shape.
Fabrication and Characteristics of Ball-Shaped Sealing Caps for Infrared Hollow Fibers

ENDO Masashi, KASAHARA Ryosuke, MATSUURA Yuji, MIYAGI Mitsunobu

The Review of laser engineering　32　(5)　364-367　2004/05/15
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.32.364 　

ISSN： 0387-0200

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To seal the end of hollow fibers for medical uses, a sealing cap for Er:YAG laser light is fabricated by fusing a glass ball onto the end of a glass capillary. The cap has a focusing effect and the focal point is located near the cap surface. Optical properties of the caps with a diameter of 1 mm are evaluated, and the lowest insertion loss of 0.27 dB and the highest transmitted pulse energy above 750 mJ have been obtained for the cap made of lowOH silica glass.
Single-Mode Tapered Bragg Fibers (Optical Fiber Technology)

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　104　(64)　19-22　2004/05/13
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Tapered-shape Bragg fiber is proposed to achieve single-mode transmission. The Bragg fiber having a uniform taper waist with 11 μm core was fabricated by forming a Si/SiO_2 multilayer-film on the single-mode fiber elongated in the shape of a biconical taper. We found that this fiber has the loss less than 2 dB in wavelength ranging from 1150 nm to 1590 nm and is supporting Gaussian-like mode in the taper waist.
B-13-19 Direct Coupling of Excimer Laser Beam into Aluminum Hollow Fiber Bundles

Yilmaz Ozgur, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(2)　567-567　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-3 Remote reflectance measurement in VUV region using hollow fibers

Murata Kousuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(1)　176-176　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-104 Transmission Improvement of X-ray Capillary Optics by Metal Inner Coating

Koyama Tadaaki, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(1)　278-278　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-128 Single-Mode Tapered Bragg Fibers

Katagiri Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(1)　302-302　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-17 Loss Reduction of Visible Pilot Beam in Hollow Fibers for Mid-Infrared Laser Delivery : Improvement of Coating of Polymer Layer

Ito Kentaro, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(2)　565-565　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
B-13-18 Small-Bore, Aluminum-Coated Hollow Glass Fibers : Optimization of MOCVD Deposition Conditions

Murakami Daisuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2004　(2)　566-566　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Photonic bandgap fiber having multilayer cladding

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

2004　(1)　51-54　2004/01/28
Fabrication of Photonic bandgap fiber having multilayer cladding

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　103　(613)　51-54　2004/01/21
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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A new fabrication technique of a photonic bandgap fiber is proposed. A multilayer film with Si and SiO_2 is deposited on silica glass fiber and a clear bandgap is observed in the loss spectrum. The bandgap property is easily controlled by the thickness and refractive index of the multilayer.
Fabrication of Photonic bandgap fiber having multilayer cladding

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. LQE　103　(610)　51-54　2004/01/21
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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A new fabrication technique of a photonic bandgap fiber is proposed. A multilayer film with Si and SiO_2 is deposited on silica glass fiber and a clear bandgap is observed in the loss spectrum. The bandgap property is easily controlled by the thickness and refractive index of the multilayer.
Fabrication of Photonic bandgap fiber having multilayer cladding

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OPE　103　(616)　51-54　2004/01/21
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

More details Close

A new fabrication technique of a photonic bandgap fiber is proposed. A multilayer film with Si and SiO_2 is deposited on silica glass fiber and a clear bandgap is observed in the loss spectrum. The bandgap property is easily controlled by the thickness and refractive index of the multilayer.
Fabrication of Photonic bandgap fiber having multilayer cladding

KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. LQE　103　(619)　51-54　2004/01/21
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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A new fabrication technique of a photonic bandgap fiber is proposed. A multilayer film with Si and SiO_2 is deposited on silica glass fiber and a clear bandgap is observed in the loss spectrum. The bandgap property is easily controlled by the thickness and refractive index of the multilayer.
Hollow waveguide delivery systems for laser technological application

Helena Jelínková, Michal Němec, Jan Šulc, Pavel Černý, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Progress in Quantum Electronics　28　(3-4)　145-164　2004

DOI： 10.1016/j.pquantelec.2003.11.001 　

ISSN： 0079-6727
Dynamic absorption coefficient of water for high-density Er:YAG laser radiation

K. Iwai, M. endo, K. Ito, Y. W. Shi, Y. Matsuura, M. Miyagi, H. Jelinkova

Proc. SPIE　172-179　2004

DOI： 10.1117/12.531793 　

ISSN： 0277-786X
Mid-infrared Radiation Spatial Profile Delivered by COP/Ag Hollow Glass Waveguide

M. Nemec, H. Jelinkova, M. Fibrich, P. Koranda, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Laser Phys. Lett.　1　(1)　1-5　2004
Hollow Optical Fibers for Delivery of Ultraviolet and Infrared Laser light

MATSUURA Yuji

316　19-23　2003/10/31
Loss reduction of Al-coated hollow fibers by improving the smoothness of the inner surface

Mukaiyama Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2003　(1)　170-170　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Diamond sealing caps for medical hollow fibers

Kanamori Ryohei, Matsuura Yuji, Shi Yi Wei, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2003　(1)　238-238　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Transmission Properties of Ball-Shaped Sealing Caps for Hollow Fibers

Endo Masashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2003　(1)　239-239　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Er : YAG-Laser Transmitting Hollow Fibers Fabricated by Glass-Drawing Technique

Kasahara Ryosuke, Katagiri Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2003　(2)　475-475　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Dynamic Absorption Coefficient of Water For High-Density Er : YAG Laser Light

Iwai Katsumasa, Endo Masashi, Ito Kentaro, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu, Jelinkova Helena

Proceedings of the Society Conference of IEICE　2003　(2)　476-476　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Silica-core photonic bandgap fiber having multilayered claddings

Katagiri Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2003　(2)　"S-52"-"S-53"　2003/09/10
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Dielectric-Coated Hollow Fibers by Glass Drawing Method

KASAHARA Ryosuke, KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　103　(257)　69-72　2003/08/14
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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For low-cost fabrication of long hollow fibers with small bore diameters, we propose a new fabrication method based on glass drawing technique. The fibers fabricated by this method have an inner thin glass layer which act as an interference coating to reduce fibers' losses. We confirm that the fiber with a proper glass thickness shows a low loss at the designed wavelengths.
Lensed Sealing Caps for Hollow Fibers

ENDO Masashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　103　(257)　73-78　2003/08/14
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To seal the end of hollow fibers for medical uses, a sealing cap is fabricated by fusing a glass ball onto the end of a glass capillary. The cap has a focusing effect and the focal point is located at around 0.2 mm from the cap surface. Thus, the cap is suitable for "contact-mode" applications. The optical properties of the caps are tested with an Er:YAG laser at 2.94 μm wavelength and as a result, the insertion loss is 0.4 dB and the highest transmitted pulse energy is above 500 mJ for the cap made of low-OH silica glass.
Fabrication of Dielectric-Coated Hollow Fibers by Glass Drawing Method

KASAHARA Ryosuke, KATAGIRI Takashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OCS　103　(255)　69-72　2003/08/14
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

More details Close

For low-cost fabrication of long hollow fibers with small bore diameters, we propose a new fabrication method based on glass drawing technique. The fibers fabricated by this method have an inner thin glass layer which act as an interference coating to reduce fibers' losses. We confirm that the fiber with a proper glass thickness shows a low loss at the designed wavelengths.
Lensed Sealing Caps for Hollow Fibers

ENDO Masashi, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OCS　103　(255)　73-78　2003/08/14
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

More details Close

To seal the end of hollow fibers for medical uses, a sealing cap is fabricated by fusing a glass ball onto the end of a glass capillary. The cap has a focusing effect and the focal point is located at around 0.2 mm from the cap surface. Thus, the cap is suitable for "contact-mode" applications. The optical properties of the caps are tested with an Er:YAG laser at 2.94 μm wavelength and as a result, the insertion loss is 0.4 dB and the highest transmitted pulse energy is above 500 mJ for the cap made of low-OH silica glass.
01.高エネルギーEr:YAGレーザ光伝搬中の水の動的吸収係数(平成14年度東北支部大会抄録)

岩井克全, 石芸尉, 松浦祐司, 宮城光信, Jelinkova Helena

生体医工学 : 日本エム・イー学会誌　41　(1)　66-66　2003/03/10
Publisher: 社団法人日本生体医工学会
ISSN： 1347-443X
Fabrication of hollow fiber with one-dimensional photonic structure

Katagiri Takashi, Kasahara Ryosuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2003　(1)　232-232　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
172nm-Excimer Lamp Delivery by Hollow Fibers

Matsuura Yuji, Yuzawa Masaki, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2003　(1)　233-233　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Loss Reduction of Al Hollow Fibers by Thickening Al_2O_3 Layer

Mukaiyama Katsumasa, Matsuura Yuji, Miyagi Mitsumobu

Proceedings of the IEICE General Conference　2003　(1)　234-234　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Transmission of High Powered CO_2 Laser Light Using Small-Bore Hollow Fiber

Kanamori Ryohei, Matsuura Yuji, Shi Yi Wei, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2003　(2)　630-630　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
レーザパワー伝送用中空光ファイバー

松浦祐司, 宮城光信

レーザー加工学会誌　10　(1)　5-9　2003/03
Publisher: レーザ加工学会
Compact effector optics for processing in limited physical access situation

KUHN A, FOX M D T, FRENCH P W, HETTRICK S, HAND D P, SHI Y‐W, MATSUURA Y, MIYAGI M, WATKINS K G

Appl. Opt.　42　(25)　5101-5106　2003

DOI： 10.1364/AO.42.005101 　

ISSN： 0003-6935
Infrared hollow optical fibers and their applications in medicine

Yi Wei Shi, Yuji Matsuura, Katsumasa Iwai, Masashi Endo, Takashi Katagiri, Mitsunobu Miyagi

Proceedings of SPIE - The International Society for Optical Engineering　5449　298-306　2003

DOI： 10.1117/12.563189 　

ISSN： 0277-786X
Delivery system with hollow waveguide for ophthalmology treatment

H. Jelinkova, M. Nemec, J. Sulc, M. Cech, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura, J. Pasta

Proc. Workshop 2003　7　488-489　2003
High energy radiation delivery by hollow waveguides in mid-infrared spectral region

M. Nemec, H. Jelinkova, J. Sulc, P. Cerny, M. Miyagi, K. Iwai, Y. Abe, Y. W. Shi, Y. Matsuura

Proc. Workshop2003　7　166-167　2003
Delivery of high-energy radiation in mid-infrared spectral region by hollow waveguides

M. Nemec, H. Jelinkova, J. Sulc, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura

Proc. SPIE　4957　178-182　2003

DOI： 10.1117/12.478044 　

ISSN： 0277-786X
Hollow waveguide delivery system for ophthalmology treatment

H. Jelinkova, M. Nemec, J. Sulc, M. Cech, M. Miyagi, K. Iwai, Y. W. Shi, Y. Matsuura, J. Pasta

Proc. SPIE　4957　170-177　2003

DOI： 10.1117/12.478041 　

ISSN： 0277-786X
Calculi fragmentation of Er:YAG laser light through a sealed flexible hollow fiber delivery system

K. Iwai, Y. W. Shi, K. Nito, Y. Matsuura, T. Kasai, M. Miyagi, S. Saito, Y. Arai, N. Ioritani, Y. Okagami, M. Nemec, J. Sulc, H. Jelinkova, M. Zavoral, Oto Kohler, P. Drlik

Proc. SPIE　62-69　2003

DOI： 10.1117/12.476798 　

ISSN： 0277-786X
Er : Yag Laser Lithotripsy by Using Flexible Hollow Fiber

Iwai Katsumasa, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2002　(1)　156-156　2002/08/20
Publisher: The Institute of Electronics, Information and Communication Engineers
Improvement of Transmission Properties of Visible Pilot Beam for Hollow Fibers Designed for CO_2 Laser Delivery

ABE Yukio, IWAI Katsumasa, TOYO-OKA Rihito, KATAGIRI Takashi, KANAMORI Ryohei, SHI Yi-Wei, MATSUURA Yuji, MIYAGI Mitsunobu, OHISHI Junko, OKAGAMI Yoshihide

The Review of laser engineering　30　(8)　472-474　2002/08/15
Publisher: レ-ザ-学会
DOI： 10.2184/lsj.30.472 　

ISSN： 0387-0200
Fabrication of a Rugged, Polymer-Coated Hollow Fiber for Infrared Transmission

IWAI Katsumasa, ABE Yukio, SHI Yi-wei, MATSUURA Yuji, MIYAGI Mitsunobu, OHISHI Junko, OKAGAMI Yoshihide

The Review of laser engineering　30　(5)　255-258　2002/05/15
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.30.255 　

ISSN： 0387-0200

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A new method is proposed to fabricate infrared polymer-coated silver hollow fibers with high mechanical strength. Two kinds of polymer are used as a protective polymer to the inner wall of silica capillary glass pipe and a dielectric layer to a silver layer, respectively. Mechanical and transmission properties of the hollow fibers have been discussed.
実用化の進む中空光ファイバーの開発動向

松浦祐司

機能材料　22　(4)　35-40　2002/04
Publisher: シ-エムシ-
ISSN： 0286-4835
Transmission characteristics of sealed hollow waveguides for Er:YAG laser radiation and their application in the ophthalmology

H. Jelinkova, M. Nemec, J. Sulc, J. Pasta, K. Iwai, Y. Abe, Y. W. Shi, Y. Matsuura, M. Miyagi

Proc. SPIE　4616　(1)　135-142　2002

DOI： 10.1117/12.463806 　

ISSN： 0277-786X
Hollow bent output devices in CO2 laser light delivery system

K. Iwai, Y. W. Shi, Y. Matsuura, M. Miyagi, J. Ohishi, Y. Okagami

Proc. SPIE　152-160　2002

DOI： 10.1117/12.463808 　

ISSN： 0277-786X
Rugged hollow fiber for the infrared and its use in laser lithotripsy

K. Iwai, Y. W. Shi, Y. Matsuura, M. Miyagi

Proc. SPIE　115-119　2002

DOI： 10.1117/12.482940 　

ISSN： 0277-786X
Design and Fabrication of a Hollow Tapered Launching Coupler for CO_2 Laser

Iwai Katsumasa, Abe Yukio, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OFT　101　(331)　19-24　2001/09/29
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We analyzed the hollow tapered launching couplers by using an optical ray tracing method. We showed the existence of optimum shape with a minimum loss in the hollow tapered launching coupler. The hollow tapered launching couplers have been fabricated. We compared the transmission losses predicted theoretically with those experimental ones and confirmed the validity of the design theory.
Beam-Direction Changing Tips for Laser Medicine

SHI Y. W, OUYANG S, AIZAWA Y, MATSUURA Y, MIYAGI M, NISHIMURA M, OHISHI J, OKAGAMI Y

289　24-28　2001/09/07
Characteristics of Laryngo-Tip Made by Using Hollow Fiber for Medical Laser Treatment

IWAI K, ABE Y, SHI Y. W, MATSUURA Y, MIYAGI M, OHISHI J, OKAGAMI Y

289　29-33　2001/09/07
Publisher: レーザー学会
Hollow Fibers for Medical Applications

MATSUURA Yuji, MIYAGI Mitsunobu

16　271-274　2001/08/29
SiO_2-Coated Hollow Fibers for Infrared Lasers : Investigation of Fabrication Process using Liquid-Phase Deposition

Saito Hiroyoshi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2001　(1)　125-125　2001/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
Sealing cap with ZnS micro-window for medical hollow fibers with high power capability

Kobayashi Naoko, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2001　(1)　126-126　2001/08/29
Publisher: The Institute of Electronics, Information and Communication Engineers
Flexible Hollow Fibers for Delivery of Ultraviolet-Laser Light

SHISHIDO Mitsunobu, MATSUURA Yuji, MIYAGI Mitsunobu

Journal of the Mining and Materials Processing Institute of Japan　117　(5)　450-453　2001/05/25
Publisher: 資源・素材学会
ISSN： 0916-1740
Properties of hollow bent output tips in CO_2 laser light delivery system

Shi Yi-Wei, Pan Zhi-Yun, Matsuura Yuji, Aizawa Yoshizo, Konno Yuji, Miyagi Mitsunobu

Technical report of IEICE. OFT　101　(63)　67-72　2001/05/11
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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In order to change the output direction of laser light in a small operation space, two types of hollow bent output tips are proposed for medical laser light delivery system. One is the hollow fiber insert-type, which is of the minimum bending radius of 3-5 cm. The other type, based on a fixed-bent pyrex glass tube, is of the minimum bending radius of 2-4 mm. Loss properties for CO_2 laser light are clarified for the tips with various bending angles and radii. A nickel layer is coated on the outside wall of fixed-bent tips so as to increase the mechanical strength and lower the surface temperature. Characteristics of surface temperature distribution and time response were experimentally discussed.
Fabrication of Hollow Fibers Coated with Metal-Oxide Multi-Layered Film

Katagiri Takashi, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OFT　100　(703)　25-30　2001/03/09
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a fabrication method of dielectric-multilayer coated hollow fibers which potentially have ultra-low loss properties. A fiber having three dielectric layers and the structure of SiO_2/Ta_2O_5/SiO_2/Ag is fabricated by all liquid-phase coating method where the SiO_2 layer is formed by using per hydro polysilazane(PHPS) as a precursor and Ta_2O_5 is deposited by sol-gel method. We successfully fabricate the multilayered fiber having proper coating thickness and the fiber shows low loss at the wavelength of Nd:YAG laser.
Validation of IRFEL-induced vibrational excitation effects on ester using fluorescent dye

FUKAMI Yuko, Ashidai Hiroshi, Obara Minoru, Morimoto Yuji, Hashishin Y., Tomita K., Nagata H., Fukai T., Nakanishi J., Matsuoka H., Shimizu Koichi, HEYA Manabu, Takagi Kentaro, Kato Yuji, Kitama Masataka, Ohmi Masato, Kurata Takayuki, Haruna Masamitsu, Mohri Shintaro, Abe Yukio, Matsuura Yuji, Kasai Takao, AWAZU Kunio, Shi Yi-Wei, Miyagi Mitsunobu, Pan Zhi-Yun, Konno Yuji, Aizawa Yoshizo, Sasaki R., Nunoyama H., Awazu K., Nakamura Masahiro, Kuwata Masahiro, Shimada Tomoaki, Nakayama Takeyoshi, Matsutani Takaomi, Nishida Yoshio, Yamanaka Masanobu, Izawa Yasukazu, Nakai Sadao, Sato Y., Tokunaga H., Ogawa Y., Oomuro H., Sato Shunichi, Harada N., Parel J. M., Murahara M., OGURA Makoto, WAKISAKA Hitoshi, Naruse Kyota, Sumiyoshi Tetsumi, Kiyoshima Shoichi, Seguchi Kenji, Arai Tsunenori, Asanuma Hiroshi, Sakata Isao, Takemura Takeshi, Nakajima Susumu, Ishihara Miya, Kawauchi Satoko, Kikuchi Makoto

The Review of Laser Engineering　29　(0)　221-222,224　2001
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.29.Supplement_221 　

ISSN： 0387-0200
Cylindrical waveguide formed of multilayered film having 1D-photonic bandgap structure

Y Matsuura, T Katagiri, M Miyagi

MATERIALS AND DEVICES FOR PHOTONIC CIRCUITS II　4453　(1)　12-17　2001

ISSN： 0277-786X
Fabrication of polymer-coated silver hollow fibers for the infrared with low-loss properties for visible pilot beams

Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OFT　100　(315)　13-18　2000/09/15
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Low-loss transmission properties were obtained in visible wavelenhgth bands by improving the fabricating parameters of the flowing coating method in the fabrication of cyclic olefin polymer (COP)-coated silver hollow glass fibers for infrared laser light. Delivery properties were evaluated by using pilot beams of visible laser light (red and green light). The brighthness of the output visible light is proved to be sufficient even when the 2m-long, 1mm or 700μm-bore size fibers were bent to the angle of 360°.
Er:YAG laser delivery system using small-bore hollow fiber

Abe Yukio, Iwai Katsumasa, Mohri Shintaro, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　160-160　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Direct excitation of hollow fibers with laser light using a tapered hollow waveguide

Sekimoto Naonobu, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　161-161　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow fibers for delivery of 2nd harmonics of Nd:YAG laser : Deliver of high energy pulses

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　162-162　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Aluminum-Coated Hollow Glass Fibers for F_2-Excimer Laser Light

Yamamoto Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　163-163　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Transmission properties of hollow fibers sealed with a fluorocarbon polymer

Mohri Shintaro, Shu Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　164-164　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of output bending tips for laser medicine: Appllcation for CO_2 laser

Pan Zhi-Yun, Oishi Junko, Konno Yuji, Aizawa Yoshizo, Shi Yi-Wei, Matsuura Yuji, Okagami Yoshihide, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　2000　(1)　165-165　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
C-3-53 Hollow fibers for delivery of high power lasers

Matsuura Yuji

Proceedings of the Society Conference of IEICE　2000　(1)　178-178　2000/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
EMD2000-39 / CPM2000-54 / OPE2000-51 / LQE2000-45 Hollow fiber delivery of 2nd-order, Nd:YAG laser pulses

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. EMD　100　(257)　43-48　2000/08/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a polymer-coated hollow fiber for delivery of the 2nd harmonics pulses of Q-switched Nd:YAG laser. The silver plating process was improved to obtain a high uniformity in the silver layer so as to suppress a scattering loss for the laser light with the 532-nm wavelength. The straight loss of the improved fiber with a 1-mm bore size and a length of 2-m was 0.5 dB. Delivery of the laser pulses with a peak power of 10MW and a pulse energy of 80 mJ was performed with the polymer-coated hollow fiber purged with He gas having higher breakdown threshold than air.
EMD2000-39 / CPM2000-54 / OPE2000-51 / LQE2000-45 Hollow fiber delivery of 2nd-order, Nd:YAG laser pulses

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OPE　100　(261)　43-48　2000/08/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a polymer-coated hollow fiber for delivery of the 2nd harmonics pulses of Q-switched Nd:YAG laser. The silver plating process was improved to obtain a high uniformity in the silver layer so as to suppress a scattering loss for the laser light with the 532-nm wavelength. The straight loss of the improved fiber with a 1-mm bore size and a length of 2-m was 0.5dB. Delivery of the laser pulses with a peak power of 10MW and a pulse energy of 80mJ was performed with the polymer-coated hollow fiber purged with He gas having higher breakdown threshold than air.
EMD2000-39 / CPM2000-54 / OPE2000-51 / LQE2000-45 Hollow fiber delivery of 2nd-order, Nd:YAG laser pulses

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. LQE　100　(263)　43-48　2000/08/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a polymer-coated hollow fiber for delivery of the 2nd harmonics pulses of Q-switched Nd:YAG laser. The silver plating process was improved to obtain a high uniformity in the silver layer so as to suppress a scattering loss for the laser light with the 532-nm wavelength. The straight loss of the improved fiber with a 1-mm bore size and a length of 2-m was 0.5dB. Delivery of the laser pulses with a peak power of 10MW and a pulse energy of 80mJ was performed with the polymer-coated hollow fiber purged with He gas having higher breakdown threshold than air.
Hollow-Tapered Launching Coupler for Er:YAG Lasers

YAEGASHI Masaru, MATSUURA Yuji, MIYAGI Mistunobu

The Review of laser engineering　28　(8)　516-519　2000/08/15
Publisher: レ-ザ-学会
DOI： 10.2184/lsj.28.516 　

ISSN： 0387-0200
EMD2000-39 / CPM2000-54 / OPE2000-51 / LQE2000-45 Hollow fiber delivery of 2nd-order, Nd:YAG laser pulses

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. Component parts and materials　100　(259)　43-48　2000/08
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a polymer-coated hollow fiber for delivery of the 2nd harmonics pulses of Q-switched Nd:YAG laser. The silver plating process was improved to obtain a high uniformity in the silver layer so as to suppress a scattering loss for the laser light with the 532-nm wavelength. The straight loss of the improved fiber with a 1-mm bore size and a length of 2-m was 0.5 dB. Delivery of the laser pulses with a peak power. of 10MW and a pulse energy of 80 mJ was performed with the polymer-coated hollow fiber purged with He gas having higher breakdown threshold than air.
Sealed hollow fibers for Er:YAG laser light

MOHRI Shintaro, SHI Yi-Wei, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　100　(85)　55-59　2000/05/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a sealing technique for medical hollow fibers to protect the inner surface from debris or water scattered from targets. Hollow fibers are sealed with a film of fluorocarbon polymer that was selected from other polymers due to the low absorption and high mechanical strength. The transmission loss of the 20 μm-thick sealing film was 0.2 dB for Er:YAG laser light and the maximum energy density that is capable for the film was 47 J/cm^2. We found no damage on the film after a continuous laser-delivery test and a radiation test in running water.
Polymer Sealing for Hollow Fibers

Mouri Shintarou, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2000　(1)　230-230　2000/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of polymer-coated hollow fibers for delivery of 2nd harmonic pulse of Nd:YAG laser

Takada Goro, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2000　(1)　231-231　2000/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Small-Bore, Aluminum-Coated Hollow Glass Fibers for ArF-Excimer Laser Light

Yamamoto Takashi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2000　(1)　232-232　2000/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Ge-coated hollow-taper coupler for infrared lasers

Sekimoto Naonobu, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2000　(1)　233-233　2000/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Design for a COP/Ag Hollow Taper Coupler by Optical Ray Tracing

Iwai Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　2000　(1)　234-234　2000/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
FahricationofuItra-thinhonowfibersforEr:YAG1aserde][ivery

YukioAbe YトWeiShi YuiiMatsuura MitsunobuMiyagi, SHI Yi-Wei, MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　99　(471)　1-5　1999/11/26
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Flexib1e,smaIIIborehoI10whberswiththeboresizesof32011.mand250凶mhavebeendeve10pedforEr:YAGlaserdelivery. Thehberwiththeboresizesof250μ5mexhibitsthestraight10ssesof0.8dB/mandthe′bending10ssofl..2dB/1nwhenthefiberswasbent180degreeswiththebendingradiusof2cm. Th.efibersefficientlyde11verlaserenergyof240mJforthe320壓m-boreand100mJforthe250壓m. Itisshownthatthefibersaresuitablel"oruseinmedicalapplications.
Recent Progress in Development of Polymer-Coated Hollow Fibers for Medical Lasers

MATSUURA Yuji, SHI Yi-Wei, ABE Yukio, YAEGASHI Masaru, TAKADA Goro, MOHRI Shintaro, MIYAGI Mitsunobu

268　13-18　1999/11/12
ArF excimer laser delivery by aluminum-coated hollow fibers

MATSUURA Yuji, YAMAMOTO Takashi, MIYAGI Mitsunobu

Technical report of IEICE. OFT　99　(347)　17-21　1999/10/08
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685
Fabrication and Transmission Properties of Lensed-Taper Coupler with Small Loss for Hollow Waveguides

Yaegashi Masaru, Iwai Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. Component parts and materials　99　(276)　59-64　1999/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We fabricated lensed-taper hollow waveguides used as launching couplers for hollow fibers. The tapered-hollow glass waveguides with a polymer on a silver thin films on the inside were fabricated by a liquid-phase deposition technique. The tapered-guide with the l.4mm inner diameter at the input end,0.7mm at the output, and the length of 10cm shows transmission losses of 0.08-0.12dB for Er:YAG laser.
Fabrication and Transmission Properties of Lensed-Taper Coupler with Small Loss for Hollow Waveguides

Yaegashi Masaru, Iwai Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. EMD　99　(274)　59-64　1999/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We fabricated lensed-taper hollow waveguides used as launching couplers for hollow fibers. The tapered-hollow glass waveguides with a polymer on a silver thin films on the inside were fabricated by a liquid-phase deposition technique. The tapered-guide with the l.4mm inner diameter at the input end,0.7mm at the output, and the length of 10cm shows transmission losses of 0.08-0.12dB for Er:YAG laser.
Fabrication and Transmission Properties of Lensed-Taper Coupler with Small Loss for Hollow Waveguides

Yaegashi Masaru, Iwai Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OPE　99　(278)　59-64　1999/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

More details Close

We fabricated lensed-taper hollow waveguides used as launching couplers for hollow fibers. The tapered-hollow glass waveguides with a polymer on a silver thin films on the inside were fabricated by a liquid-phase deposition technique. The tapered-guide with the l.4mm inner diameter at the input end,0.7mm at the output, and the length of 10cm shows transmission losses of 0.08-0.12dB for Er:YAG laser.
Fabrication and Transmission Properties of Lensed-Taper Coupler with Small Loss for Hollow Waveguides

Yaegashi Masaru, Iwai Katsumasa, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. LQE　99　(280)　59-64　1999/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We fabricated lensed-taper hollow waveguides used as launching couplers for hollow fibers. The tapered-hollow glass waveguides with a polymer on a silver thin films on the inside were fabricated by a liquid-phase deposition technique. The tapered-guide with the l.4mm inner diameter at the input end,0.7mm at the output, and the length of 10cm shows transmission losses of 0.08-0.12dB for Er:YAG laser.
Fabrication of SiO_2-Coated Silver Hollow Fibers for Er:YAG Laser Light Fabricated by Liquid-Phase Deposition

Douwaki Sufuru, Abe Yukio, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1999　(1)　189-189　1999/08/16
Publisher: The Institute of Electronics, Information and Communication Engineers
Small-bore hollow fibers for Er:YAG laser light : Fabrication and properties of 250μm-bore fibers

Abe Yukio, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1999　(1)　190-190　1999/08/16
Publisher: The Institute of Electronics, Information and Communication Engineers
Lensed-Taper Launching Coupler for Hollow Waveguides : Reduction of Er:YAG-Laser Transmission Loss

Yaegashi Masaru, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1999　(1)　191-191　1999/08/16
Publisher: The Institute of Electronics, Information and Communication Engineers
エキシマレーザ用アルミニウム中空ファイバ

松浦祐司, 宮城光信

光アライアンス　10　(7)　20-22　1999/07
Publisher: 日本工業出版
ISSN： 0917-026X
Fabrication of Prolonged Hollow Fibers for Delivery of Nd:YAG Laser pulses

Hanamoto Konosuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1999　(1)　192-192　1999/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
X-ray delivery by glass capillary tubing coated with metal thin film

Mochizuki Hiroaki, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1999　(1)　193-193　1999/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Lensed-Taper Launching Coupler for Hollow Waveguides

Yaegashi Masaru, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1999　(1)　194-194　1999/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow Fibers for Laser Delivery Systems

MATSUURA Yuji, MIYAGI Mitsunobu

The Review of laser engineering　27　(3)　173-177　1999/03
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.27.173 　

ISSN： 0387-0200

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Hollow fibers for variety of lasers emitting wavelengths from the infrared to ultraviolet are introduced. Forinfrared lasers represented by CO₂ and Er: YAG lasers, hollow fibers having dielectric and silver film on theinside of glass tubing have been developed. It is shown that the fibers transmit high-powered laser light withlow attenuation due to the interference effect of the internal dielectric layer. For excimer laser light, hollow glassfibers with an inner aluminum film show low loss characteristics because of the high reflection coefficient ofaluminum in the ultraviolet region. Hollow fibers enable many applications in industrial and medical fieldsthat need effective delivery medium of laser light.
Optical hollow fibers for delivery of high-energy laser pulses

MATSUURA Yuji, MIYAGI Mitsunobu

応用物理　68　(1)　41-43　1999/01/10
Publisher: 応用物理学会
DOI： 10.11470/oubutsu1932.68.41 　

ISSN： 0369-8009
New cyclic olefin polymer-coated silver hollow glass waveguides for the infrared

Shi Yi-Wei, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

Technical report of IEICE. OFT　98　(367)　7-13　1998/10/26
Publisher: The Institute of Electronics, Information and Communication Engineers

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Cyclic olefin polymer-coated silver hollow glass waveguides have been successfully fabricated with the length of 2 m and the inner diameter of 1 mm, 700 μm, and 540 μm, respectively. Low loss properties for Nd:YAG, Er:YAG, CO, and CO_2 laser light were attained by properly selecting the film thickness of COP polymer layer. Straight losses are less than 0.2 dB/m for the waveguides with the inner diameter of 1 mm for the above lasers. Bending losses of these waveguides were also evaluated.
Aluminum hollow fibers for delivery of excimer laser light

MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. OFT　98　(367)　15-20　1998/10/26
Publisher: The Institute of Electronics, Information and Communication Engineers

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Hollow fibers with an internal aluminum coating are developed for delivery of high-powered excimer laser light pulses. The aluminum film with a mirror surface is deposited on the inside of glass capillary tubing by using metal-organic chemical vapor deposition (MOCVD) technique. The fiber shows low-loss property for ArF -and KrF-excimer laser light. The straight losses of the fiber with 1.0mm-bore are 1.0dB/m for ArF and 0.4dB/m for KrF lasers.
New cyclic olefin polymer-coated silver hollow glass waveguides for the infrared

Shi Yi-Wei, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

Technical report of IEICE. Energy engineering in electronics and communications　98　(366)　7-13　1998/10/26
Publisher: The Institute of Electronics, Information and Communication Engineers

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Cyclic olefin polymer-coated silver hollow glass waveguides have been successfully fabricated with the length of 2 m and the inner diameter of 1 mm, 700 μm, and 540 μm, respectively. Low loss properties for Nd:YAG, Er:YAG, CO, and CO_2 laser light were attained by properly selecting the film thickness of COP polymer layer. Straight losses are less than 0.2 dB/m for the waveguides with the inner diameter of 1 mm for the above lasers. Bending losses of these waveguides were also evaluated.
Aluminum hollow fibers for delivery of excimer laser light

MATSUURA Yuji, MIYAGI Mitsunobu

Technical report of IEICE. Energy engineering in electronics and communications　98　(366)　15-20　1998/10/26
Publisher: The Institute of Electronics, Information and Communication Engineers

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Hollow fibers with an internal aluminum coating are developed for delivery of high-powered excimer laser light pulses. The aluminum film with a mirror surface is deposited on the inside of glass capillary tubing by using metal-organic chemical vapor deposition (MOCVD) technique. The fiber shows low-loss property for ArF -and KrF-excimer laser light. The straight losses of the fiber with 1.0mm-bore are 1.0dB/m for ArF and 0.4dB/m for KrF lasers.
Polymer-Coated Silver Hollow Fiber for Delivery of Nd:YAG Laser Pulses

Hanamoto Konosuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1998　(1)　155-155　1998/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Small-Bore Hollow Fibers for Er:YAG Laser Light

Abe Yukio, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1998　(1)　156-156　1998/09/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Delivery of High-Power Nd : YAG Laser Pulses by Hollow Fibers

Hanamoto Konosuke, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

IEICE technical report. Component parts and materials　98　(251)　1-5　1998/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers

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Hollow fibers are proposed to deliver high-power Nd:YAG laser pulses. The fibers are composed of glass capillary tubing, a thin silver layer formed by a silver mirror plating technique and a polymer film deposited by a liquid-flow method. Experimental results show that the polymer-coated hollow fiber of 1mm in diameter and 1m in length provides a low transmission loss of 0.1dB for radiation of Nd:YAG laser pulses.
Delivery of High-Power Nd:YAG Laser Pulses by Hollow Fibers

Hanamoto Konosuke, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

IEICE technical report. EMD　98　(249)　1-5　1998/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Hollow fibers are proposed to deliver high-power Nd : YAG laser pulses. The fibers are composed of glass capillary tubing, a thin silver layer formed by a silver mirror plating technique and a polymer film deposited by a liquid-flow method. Experimental results show that the polymer-coated hollow fiber of 1mm in diameter and 1m in length provides a low transmission loss of 0.1dB for radiation of Nd : YAG laser pulses.
Delivery of High-Power Nd : YAG Laser Pulses by Hollow Fibers

Hanamoto Konosuke, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

Technical report of IEICE. OPE　98　(253)　1-5　1998/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Hollow fibers are proposed to deliver high-power Nd : YAG laser pulses. The fibers are composed of glass capillary tubing, a thin silver layer formed by a silver mirror plating technique and a polymer film deposited by a liquid-flow method. Experimental results show that the polymer-coated hollow fiber of 1mm in diameter and 1m in length provides a low transmission loss of 0.1dB for radiation of Nd : YAG laser pulses.
Delivery of High-Power Nd:YAG Laser Pulses by Hollow Fibers

Hanamoto Konosuke, Matsuura Yuji, Sato Shunichi, Miyagi Mitsunobu

Technical report of IEICE. LQE　98　(255)　1-5　1998/08/27
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Hollow fibers are proposed to deliver high-power Nd:YAG laser pulses. The fibers are composed of glass capillary tubing, a thin silver layer formed by a silver mirror plating technique and a polymer film deposited by a liquid-flow method. Experimental resluts show that the polymer-coated hollow fiber of 1mm in diameter and 1m in length provides a low transmission loss of 0.1dB for radiation of Nd:YAG laser pulses.
Design and Transmission Characteristics of Lensed-Taper Launching Coupler for Infrared Hollow Fibers

HIRAGA Hajime, MATSUURA Yuji, MIYAGI Mitsunobu, ABE Shin-ichi, ONODERA Shinji, J. A. Harrington

The Review of laser engineering　26　(4)　331-334　1998/04
Publisher: The Laser Society of Japan
DOI： 10.2184/lsj.26.331 　

ISSN： 0387-0200

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A new scheme of launching coupler for hollow fibers consisting of a lens and a tapered hollow waveguide is proposed to increase the alignment tolerance between the incident beam and a hollow fiber. A series of experiments using the tapered hollow waveguide made of Pyrex glass were performed to investigate the properties and effectiveness of the tapered waveguide and to design the structural parameters of the lensed-taper coupler. We successfully reduced the attenuation of the tapered hollow waveguide with a silver iodide and silver film coated on the inner surface of glass taper. This new launching system has large alignment tolerance for the optical axis of the waveguide.
Distal Tip for Hollow Fibers Fabricated by Sol-Gel Method

Kubota Satoshi, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　242-242　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Circular Aluminum Hollow Fiber for Excimer Lasers Fabricated by Outer Coating Method

Chinda Yusuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　232-232　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Hollow Fibers for High-Power Nd : YAG Laser Light

Hanamoto Konosuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　233-233　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Fabrication of Ploymer-Coated Hollw Fibers for CO_2 Laser : Selection of Engineering Plastic as Inner Dielectric Material

Abe Yukio, Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　234-234　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Copper Oxide-Coated Hollow Fibers for High-Power Infrared Lasers Fabricated by MOCVD Method

Miura Daisuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　235-235　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Transmission Properties of Lensed-Taper Launching Coupler for Hollow Fibers

Hiraga Hajime, Matsuura Yuji, Abe Shin-ichi, Onodera Shinji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1998　(1)　236-236　1998/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Aluminum Hollow Fibers for Excimer Laser Light Fabricated by MOCVD Method

MATSUURA Y, MIYAGI M

248　33-36　1998/02/06
Fabrication of Cyclic Olefin Polymer (COP)-coated silver hollow glass waveguides for the infrared

YW Shi, Y Wang, Y Abe, Y Matsuura, M Miyagi, H Uyama, M Taniwaki, S Sato

SURGICAL-ASSIST SYSTEMS, PROCEEDINGS OF　3262　96-102　1998

DOI： 10.1117/12.309461 　

ISSN： 0277-786X
Fabrication of Small-Bore FCP-Coated Silver Hollow Glass Fibers for Er:YAG Laser Radiation

Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. Component parts and materials　97　(233)　61-67　1997/08/21
Publisher: The Institute of Electronics, Information and Communication Engineers

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Two types of fluorocarbon polymer (FCP)-coated silver hollow glass fibers have been fabricated for Er:YAG laser delivery by using the improved wet chemical technique and dynamic coating procedure. The straight losses of 2 m-long 700 μmφ and 540 μmφ waveguides are 0.4 dB and 1.0 dB, respectively. The transmission losses of these waveguides are below 1.5 dB even when the waveguides are bent to 180° with the bending radius of either 20 cm or 15 cm. With proper input coupling, the hollow fibers are capable of efficient delivering up to 5 W of the Er:YAG laser radiation.
Fabrication of Small-Bore FCP-Coated Silver Hollow Glass Fibers for Er:YAG Laser Radiation

Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

IEICE technical report. EMD　97　(231)　61-67　1997/08/21
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Two types of fluorocarbon polymer (FCP)-coated silver hollow glass fibers have been fabricated for Er:YAG laser delivery by using the improved wet chemical technique and dynamic coating procedure. The straight losses of 2 m-long 700 μmφ and 540 μmφ waveguides are 0.4 dB and 1.0 dB, respectively. The transmission losses of these waveguides are below 1.5 dB even when the waveguides are bent to 180° with the bending radius of either 20 cm or 15 cm. With proper input coupling, the hollow fibers are capable of efficient delivering up to 5 W of the Er:YAG laser radiation.
Fabrication of Small-Bore FCP-Coated Silver Hollow Glass Fibers for Er:YAG Laser Radiation

Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. OPE　97　(235)　61-67　1997/08/21
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Two types of fluorocarbon polymer (FCP)-coated silver hollow glass fibers have been fabricated for Er:YAG laser delivery by using the improved wet chemical technique and dynamic coating procedure. The straight losses of 2 m-long 700 μmφ and 540 μmφ waveguides are 0.4 dB and 1.0 dB, respectively. The transmission losses of these waveguides are below 1.5 dB even when the waveguides are bent to 180° with the bending radius of either 20 cm or 15 cm. With proper input coupling, the hollow fibers are capable of efficient delivering up to 5 W of the Er:YAG laser radiation.
Fabrication of Small-Bore FCP-Coated Silver Hollow Glass Fibers for Er:YAG Laser Radiation

Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Technical report of IEICE. LQE　97　(237)　61-67　1997/08/21
Publisher: The Institute of Electronics, Information and Communication Engineers

More details Close

Two types of fluorocarbon polymer (FCP)-coated silver hollow glass fibers have been fabricated for Er:YAG laser delivery by using the improved wet chemical technique and dynamic coating procedure. The straight losses of 2 m-long 700 μmφ and 540 μmφ waveguides are 0.4 dB and 1.0 dB, respectively. The transmission losses of these waveguides are below 1.5 dB even when the waveguides are bent to 180° with the bending radius of either 20 cm or 15 cm. With proper input coupling, the hollow fibers are capable of efficient delivering up to 5 W of the Er:YAG laser radiation.
Infrared Hollow Fibers Fabricated by MOCVD Method : Deposition of Metal Oxide Films

Miura Daisuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1997　(1)　191-191　1997/08/13
Publisher: The Institute of Electronics, Information and Communication Engineers
Uniform Deposition of Cyclic Olefin Polymer for Infrared Hollow Fiber

Abe Yukio, Wang You, Shi Yi-Wei, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1997　(1)　192-192　1997/08/13
Publisher: The Institute of Electronics, Information and Communication Engineers
Loss Reduction of Lensed-Taper Launching Coupler for Hollow Fibers

Hiraga Hajime, Matsuura Yuji, Abe Shin-ichi, Onodera Shinji, Miyagi Mitsunobu

Proceedings of the Society Conference of IEICE　1997　(1)　215-215　1997/08/13
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow Glass Waveguide with Multiple Dielectric Layers Coated by Liquid-Phase Deposition

Abe Yukio, Shimomura Takehiro, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1997　(1)　214-214　1997/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow Glass Fiber Coated with Cyclic Olefin Polymer for CO and CO_2 lasers

Shimomura Takehiro, Uyama Hiroshi, Matsuura Yuji, Miyagi Mitsunobu, Taniwaki Manabu, Sato Shunichi

Proceedings of the IEICE General Conference　1997　(1)　307-307　1997/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Lensed-Taper Launching Coupler for Hollow Fibers

Hiraga Hajime, Wang You, Matsuura Yuji, Abe Shinichi, Onodera Shinji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1997　(1)　308-308　1997/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Al_2O_3 Infrared Hollow Fiber Fabricated by MOCVD Method

Miura Daisuke, Matsuura Yuji, Miyagi Mitsunobu

Proceedings of the IEICE General Conference　1997　(1)　309-309　1997/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
Hollow waveguides for delivery of laser light energy.

MATSUURA Yuji, MIYAGI Mitsunobu

応用物理　62　(1)　44-46　1993/01/10
Publisher: 応用物理学会
DOI： 10.11470/oubutsu1932.62.44 　

ISSN： 0369-8009
Spectral attenuation of incoherent ir light in circular hollow waveguides

Mitsunobu Miyagi, Yuji Matsuura, Mitsunor Saito, Mitsunobu Miyag

Applied Optics　27　(20)　4167-4168　1988/10/15

DOI： 10.1364/AO.27.004169 　

ISSN： 2155-3165 1559-128X

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Books and Other Publications 14

血糖測定・コントロールの最新動向

シーエムシー出版　2024
OPTOELECTRONICS 2017年度光産業技術に関する報告書

光産業技術振興協会　2018
生体情報センシングとヘルスケアへの最新応用

松浦祐司ほか

技術情報協会　2017/04
Interface Oral Health Science 2016 -Innovative Research on Biosis-Abiosis Intelligent interface-

Yuji Matsuura

Springer Japan　2017/01
電気学会技術報告バイオメディカル・フォトニクス応用技術2

松浦ほか

電気学会　2015/06/05
Lasers for medical applications: Diagnostics, therapy and surgery

H. Jelinkova, Y. Matsuura

Woodhead　2013/10/14
電気学会技術報告バイオメディカル・フォトニクス応用技術

松浦ほか

電気学会　2012/06/05
次世代光医療－レーザー技術の臨床への橋渡し－

粟津邦男編

シーエムシー出版　2010/11
Optical Guided-wave Chemical and Biosensors II

M. Aourob, A. Lakhtakia, e

Springer, Berlin　2010/03
フォトニクス基礎

伊藤弘昌編

朝倉書店　2009/06
バイオメディカルフォトニクス

松浦祐司

オーム社　2009/04
テラヘルツ技術総覧

松浦祐司

NGT出版　2007/06
エネルギーを考える

東北大学工学部教務委員会編

東北大学出版会　2004/04
ブロ-ドバンド光ファイバ応用技術

藤井陽一ほか

2001/12

Show all Show first 5

Presentations 213

Terahertz gas sensing based on time-domain-spectroscopy using a hollow optical fiber gas cell International-presentation

T. Suzuki, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII　2018/01
Blood glucose measurement with multiple quantum cascade lasers using hollow optical fiber-based ATR spectroscopy International-presentation

K. Yoshioka, S. Kino, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII　2018/01
Transmission properties of dielectriccoated hollow optical fibers based on stainless tube International-presentation

K. Iwai, H. Takaku, M. Miyagi, Y. Shi, X. Zhu, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII　2018/01
Fluorescence endoscopy using fiber speckle illumination International-presentation

S. Nakano, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII　2018/01
Photoacoustic imaging of hidden dental caries by using a bundle of hollow optical fibers International-presentation

T. Koyama, S. Kakino, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII　2018/01
Fiber-Assisted Fluorescence Spectral Endoscope International-presentation Invited

T. Katagiri, S. Nakano, Y. Matsuura

JSAP-OSA Joint Symposia 2017　2017/09
Non-invasive measurement of blood glucose by using mid-infrared light International-presentation Invited

Yuji Matsuura

2017 International Advanced Laser Application Summit Forum　2017/05
Multi-capillary based optical sensors for highly sensitive protein detection International-presentation

Y.Okuyama, T. Katagiri, Y. Matsuura

Biomedical Imaging and Optical Sensing Conference (BISC) 2017　2017/04
Fabrication of terahertz hollow-optical fiber with inner dielectric layer International-presentation

T. Suzuki, T. Katagiri, Y. Matsuura

Advanced Lasers and Photon Sources (ALPS’17)　2017/04
Photoacoustic Imaging of Hidden Dental Caries by Using a Fiber-Based Probing System International-presentation

T. Koyama, S. Kakino, Y. Matsuura

Biomedical Imaging and Optical Sensing Conference (BISC) 2017　2017/04
Noninvasive measurement of blood glucose level using mid-infrared quantum cascade lasers International-presentation

K.Yoshioka, S. Kino, Y. Matsuura

Biomedical Imaging and Optical Sensing Conference (BISC) 2017　2017/04
Fabrication of bundle-structured tube-leaky optical fibers for infrared thermal imaging International-presentation

T. Kobayashi, T. Katagiri, Y. Matsuura

RIEC International Workshop on Biomedical Optics 2017　2017/03
Analysis of propagation properties of terahertz hollow-optical fiber by using time-domain spectroscopy and application for THz wave remote spectroscopy International-presentation

K.Ito, T. Katagiri, Y. Matsuura

RIEC International Workshop on Biomedical Optics 2017　2017/03
Ultraviolet spectroscopic breath analysis using hollow-optical fiber as gas cell International-presentation

T. Iwata, T. Katagiri, Y. Matsuura

RIEC International Workshop on Biomedical Optics 2017　2017/03
Analysis of propagation properties of terahertz hollow-optical fiber by using time-domain spectroscopy and application for THz wave remote spectroscopy International-presentation

K.Ito, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVII　2017/01
Fabrication of bundle-structured tube-leaky optical fibers for infrared thermal imaging International-presentation

T. Kobayashi, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVII　2017/01
Ultraviolet spectroscopic breath analysis using hollow-optical fiber as gas cell International-presentation

T. Iwata, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVII　2017/01
Measurement of blood glucose level by using mid-infrared hollow-optical fiber probe with ATR multi-reflection prism International-presentation

The 6th Asia Pacific Optical Sensors Conference　2016/11
Biomedical applications of hollow Biomedical applications of hollow-optical fiber probe -Noninvasive measurement of blood glucose- International-presentation

2016 International Conference on Regulatory Approaches for Fostering Innovation in Drugs and Medical Devices　2016/10
Biomedical applications of hollow Biomedical applications of hollow-optical fiber probe -Noninvasive measurement of blood glucose- International-presentation

2016 Biomedical Engineering Ecosystem Symposium　2016/10
Blood glucose measurement using mid-infrared hollow-optical fiber probe with ATR multi-reflection prism International-presentation

S. Kino, Y. Matsuura

CLEO 2016　2016/06
Analysis of propagation modes in THz-hollow optical fibers by time-domain spectroscopy International-presentation

K. Yaegashi, T. Katagiri, Y. Matsuura

Advanced Lasers and Photon Sources Conference (ALPS)2016　2016/05
Hollow optical-fiber probe for analysis of CO2 gas localized in respiratory system International-presentation

T. Iida, T. Katagiri, Y. Matsuura

Advanced Lasers and Photon Sources Conference (ALPS)2016　2016/05
Infrared thermal imaging by bundled tube-leaky hollow optical fibers International-presentation

T. Kobayashi, T. Katagiri, Y. Matsuura

Biomedical Imaging and Optical Sensing Conerence (BISC) 2016　2016/05
Spectroscopic gas analysis using hollow-optical fiber gas cell and infrared quantum cascade laser International-presentation

K. Yaegashi, T. Katagiri, Y. Matsuura

Advanced Lasers and Photon Sources Conference (ALPS)2016　2016/05
Breath analysis by ultraviolet gas spectroscopy using hollow-optical fiber as gas cell International-presentation

T. Iwata, T. Katagiri, Y. Matsuura

Advanced Lasers and Photon Sources Conference (ALPS)2016　2016/05
Non-invasive measurement of blood glucose level based on mid-infrared spectroscopy using optical-fiber probe International-presentation

S. Kino

The Joint Symposium of 10th International Symposium on Medical, Bio- and Nano-Electronics　2016/03
Photoacoustic applications for dentistry-pulp vitality test and hidden caries detection- International-presentation

A. Yamada, S. Kakino

The Joint Symposium of 10th International Symposium on Medical, Bio- and Nano-Electronics　2016/03
Photoacoustic detection of blood in dental pulp by using short-time Fourier transform International-presentation

A. Yamada, S. Kakino, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIIV　2016/02/14
Photoacoustic imaging by using a bundle of thin hollow-optical fibers International-presentation

A. Seki, K. Iwai, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIIV　2016/02/14
Blood glucose measurement in vivo using hollow-fiber based mid-infrared ATR probe with multi-reflection prism International-presentation

S. Kino, S.Omori, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIIV　2016/02/14
Detection of early caries by laser-induced breakdown spectroscopy International-presentation

The 6th International Symposium for Interface Oral Health Science　2016/01
Detection of early caries by laser-induced breakdown spectroscopy International-presentation

S. Sasazawa, S. Kakino, Y. Matsuura

European Conference on Biomedical Optics　2015/06/15
Photoacoustic imaging system with ultra-thin hollow optical fibers International-presentation

A. Seki, K. Iwai, Y. Matsuura

5th Asian and Pacific-Rim Symposium on Biophotonics　2015/04/29
Photo-acoustic analysis of dental pulp using near infrared laser light International-presentation

A. Yamada, S. Kakino, Y. Matsuura

5th Asian and Pacific-Rim Symposium on Biophotonics　2015/04/29
Fiber-optic direct Raman imaging system based on a hollow-core fiber bundle International-presentation

S. Inoue, T. Katagiri, Y. Matsuura

"SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV Treatment Applications XV"　2015/02/01
Improvement of transmission properties for a rugged polymer-coated silver hollow fiber International-presentation

K. Iwai, H. Takaku, M.Miyagi, S. Shi, Y. Matsuura

"SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV Treatment Applications XV"　2015/02/01
Hollow optical fibers for high-power laser transmission International-presentation

Laser Ignition Coference (LIC) 2014　2014/04/24
Optical biopsy system based on hollow optical fibers International-presentation

Biomedical Imaging and Optical Sensing Conerence (BISC) 2014　2014/04/23
Optical-fiber based all-optical 3D photoacoustic imaging system International-presentation

Y. Miida

"SPIE Conference on Photons Plus Ultrasound: Imaging and Sensing 2014 Treatment Applications XIV"　2014/02/05
Large-core tube-leaky waveguide for delivery of high-powered Er:YAG laser International-presentation

S. Kobayashi, T. Katagiri, Y. Matsuura

"SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV Treatment Applications XIV"　2014/02/01
Hollow fiber based SERS probe for analysis of biological molecules International-presentation

M. Nagaoka, T. Katagiri, Y. Matsuura

"SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV Treatment Applications XIV"　2014/02/01
Ultraviolet gas-spectroscopy system using hollow optical fiber as micro-volume gas cell International-presentation

Y. Miida, Y. Matsuura

Conference on Laser Surgery and Medicine 2013　2013/04
Fabrication of hollow fiber based probe for SERS detection of biomolecules International-presentation

Y. Dessen, T. Katagiri, Y. Matsuura

Conference on Laser Surgery and Medicine 2013　2013/04
Infrared tube-leaky optical fibers with microstructured glass supports International-presentation

K. Kobayashi, T. Katagiri, Y. Matsuura

OFC/NFOEC 2013　2013/03
Fabrication of a rugged polymer-coated silver hollow fiber with a vitreous film for the infrared International-presentation

K. Iwai, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII　2013/01
Optical fiber probe for all-optical photoacoustic measurement International-presentation

Y. Miida, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII　2013/01
Hollow waveguide with multiple dielectric layer for infrared cavity-ring-down spectroscopy International-presentation

R. Ichikawa, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII　2013/01
Measurement of blood glucose by infrared spectroscopy using hollow-optical fiber probe International-presentation

Y. Tanaka, S. Kino, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XII　2013/01
Hollow optical fiber bundle for Raman imaging International-presentation

T. Katagiri, T. Tomiyama, Y. Matsuura

23rd International conference on Raman spectroscopy (ICORS 2012)　2012/08
Remote FTIR spectral imaging system based on hollow-optical fiber bundle for measurement of biomedical tissue International-presentation

C. Huang, S. Kino, T. Katagiri, Y. Matsuura

OPIC 2012　2012/04
Background free remote Raman imaging by hollow optical fiber International-presentation

T. Katagiri, T. Tomiyama, Y. Matsuura

Nano-Biomedical Engineering in the East Asian-Pacific Rim Region　2012/03
Uniform polymer-film formation in 100-um-bore hollow fiber for Er:YAG laser transmission International-presentation

K. Iwai, M. Suzuki, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2012/01
Infrared spectral imaging by hollow-optical fiber bundle International-presentation

C. Huang, S. Kino, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2012/01
Raman spectral imaging using hollow flexible fiber bundles International-presentation

T. Tomiyama, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2012/01
Investigation of tapered silver / silver halide coated hollow glass International-presentation

C. M. Bledt, D. V. Kopp, J. A. Harrington, S. Kino, Y. Matsuura, J. M. Kriese

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2012/01
Design and fabrication of hollow fiber-based Raman tweezers for bioparticle measurement International-presentation

Y. Morisaki, T.Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2012/01
Small-volume cavity cell using hollow optical fiber for Raman scattering-based gas detection International-presentation

Y. Okita, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2011/01
Hollow fiber-based Raman tweezers International-presentation

T. Katagiri, Y. Morisaki, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2011/01
Flexible hollow-fiber bundle for body temperature imaging International-presentation

Y. Matsuura, K. Naito

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2011/01
Fabrication of silver-coated hollow fiber with an inner diameter of 100 μm or less International-presentation

K. Iwai, M.Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XI　2011/01
Endoscopic optical diagnosis and surgery system based on hollow optical fiber International-presentation

Y. Matsuura, T. Watanabe, S. Kino

OECC2010　2010/07
A Raman cell based on hollow optical fibers for breath analysis International-presentation

Y. Okita, T. Katagiri, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X　2010/01
Flexible ATR probe for endoscopic FT-IR measurement using hollow optical fiber International-presentation

Y. Matsuura, S. Kino

SPIE Conference on Clinical and Biomedical Spectroscopy　2009/06
Surface Plasmon-Based Refractive Index Sensor Using a Tapered Bragg Fiber International-presentation

L. Ma, Y. Matsuura

Optical Fiber Communication Conference　2009/03
Simultaneous irradiation of Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues International-presentation

T. Watanabe, K. Iwai, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
An optical biopsy system with miniaturized Raman and spectral imaging probes: in vivo animal and ex vivo clinical application studies, International-presentation

H. Sato, T. Suzuki, S. Morita, A. Maruyama, H. Shinzawa, Y. Komachi, G. Kanai, N. Ura, K. Masutani, Y. Matsuura, M. Toi, T. Shimosegawa, Y. Ozaki

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
Fabrication of hollow optical fiber with a vitreous film for CO2 laser light delivery International-presentation

K. Iwai, M. Miyagi, X. Tan, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
Noninvasive subsurface analyzing technique using multiple miniturized Raman probe International-presentation

Y. Yamamoto, Y. Komachi, H. Shinzawa, A. Maruyama, B. Andriana, Y. Matsuura, Y. Ozaki, H. Sato

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
250 um inner diameter hollow waveguide for Er:YAG laser radiation International-presentation

M. Nemec, H. Jelinkova, M. Miyagi, K. Iwai, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
The effect of dielectric absorption on the transmission characteristics of terahertz hollow fibers International-presentation

X. Tan, Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications Ⅸ　2009/01
High efficiency dental excavation by dual-wavelength laser radiation International-presentation

T. Watanabe, Y. Matsuura

The 1st Student Organizing International Mini-Conference on Information Electronics Systems　2008/10
Fiber sensor for refractive index measurement based on surface plasmon resonance International-presentation

L. Ma, Y. Matsuura

The 1st Student Organizing International Mini-Conference on Information Electronics Systems　2008/10
Delivery of femtosecond pulses by hollow-core optical fiber International-presentation

Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII　2008/01
Dual-wavelength laser irradiation through hollow optical fiber for hard tissue ablation International-presentation

T. Watanabe, K. Iwai, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII　2008/01
Fabrication of 100-um-bore hollow fiber for infrared transmission International-presentation

K. Iwai, M. Miyagi, Y. Shi, X. Zhu, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII　2008/01
Thin hollow glass waveguide for near IR radiation delivery International-presentation

M. Nemec, H. Jelinkova, J. Sulc, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII　2008/01
Submicron-diameter silica taper with a Bragg multilayer structure: observation for TE[sub 01] and HE[sub 11] mode guidance International-presentation

L. Ma, Y. Matsuura

Asia-Pacific Optical Communications Conference (APOC)2007　2007/11
Hollow fiberoptics probe for remote FTIR spectrometry International-presentation

Y. Matsuura, S. Kino

3rd Asian and Pacific Rim Symposium on Biophotonics　2007/07
Flexible hollow polycarbonate fiber for endoscopic infrared laser treatment International-presentation

M. Nakazawa, Y. Shi, K. Iwai, Y. Matsuura, X. Zhu, M. Miyagi

European Conference on Biomedical Optics　2007/06
Remote FTIR reflectometry for clinical diagnosis using hollow optical-fiber probe International-presentation

Y. Matsuura, S. Kino

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII　2007/01
Simultaneous delivery of Er:YAG and Ho:YAG lasers by using a hollow optical fibers for endoscopic lithotripsy International-presentation

K. Iwai, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII　2007/01
Silica Bragg fiber taper for subwavelength beam generation International-presentation

L. Ma, Y. Matsuura

The joint international conference of 5th international symposium on system construction of global-network-oriented information electronics and student-organizing international mini-conference on information electronics system　2007/01
Hollow infrared fiber with an inorganic inner coating layer with high durability International-presentation

K. Iwai, Y. Shi, M. Miyagi, X. Zhu, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII　2007/01
Hollow fiber-optic Raman probes for small experimental animals International-presentation

T. Katagiri, Y. Hattori, T. Suzuki, Y. Matsuura, H. Sato

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII　2007/01
Flexible fiberoptic probes for Raman and FT-IR remote spectroscopy International-presentation

Y. Matsuura

The joint international conference of 4th international symposium on system construction of global-network-oriented information electronics and student-organizing international mini-conference on information electronics system　2007/01
Modification of mid-infrared radiation spatial structure caused by COP/Ag hollow waveguide International-presentation

M. Nemec, H. Jelinkova, M. Fibrich, P. Koranda, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VII　2007/01
Hollow fiber optic probe for in vivo Raman measurement International-presentation

T. Katagiri, Y. Hattori, Y. Komachi, Y. Matsuura, H. Tashio, H. Sato

SPIE Conference on Clinical Diagnostic Technologies　2006/10
Biomedical commercialization in Japan International-presentation

Y. Matsuura

Advanced technology commercialization workshop on optical sensing and imaging　2006/10
UV, x-ray, and Raman waveguides for medical treatments International-presentation

Y. Matsuura

Advaced study institute on optical waveguide sensing and imaging　2006/10
Silica nanotaper optics with Bragg-fiber structure International-presentation

L. Ma, T. Katagiri, Y. Matsuura

Asia-Pacific Optical Communications Conference (APOC)2006　2006/09
レーザー導光と生体内照射

日本歯科用CO2レーザー学会，日本歯科用Nd:YAGレーザー学会第6回学術大会　2006/07
医用中空光ファイバ：Ｘ線からテラヘルツまで

電気学会光・量子デバイス研究会　2006/05
Generation of powerful 3-microns radiation and its delivery International-presentation

M. Cech, M. Nemec, P. Koranda, H. Jelinkova, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

SPIE Conference on Solid State Lasers and Amplifiers II　2006/04
医療用中空光ファイバの最近の展開

理研シンポジウム　2006/03
Hollow optical waveguides for extreme wavelength -Soft X-ray, extreme ultraviolet, and terahertz regions International-presentation

Y. Matsuura

3rd International Symposium on System Construction of Global-Network Oriented Information electronics　2006/02
Hollow-optical fiber probe for confocal Raman endoscopy International-presentation

T. Katagiri, Y. Komachi, Y. Hattori, Y. Matsuura, M. Miyagi, H. Tashiro, H. Sato

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI　2006/01
Uniform polymer-film formation in hollow fiber by circulatory coating method International-presentation

K. Iwai, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI　2006/01
Bundled hollow-optical fiber for delivery of 30-MW peak power Nd:YAG laser pulses International-presentation

Y. Matsuura, Y. Ozgur, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI　2006/01
Er:YAG laser radiation for soft and hard urological tissue treatment International-presentation

P. Koranda, H. Jelinkova, M. Nemec, O. Kohler, P. Drlik, J. Pokorny, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Urology: Diagnostics and Therapeutics　2006/01
Medical applications of 3 um delivery waveguide system International-presentation

M. Nemec, H. Jelinkova, P. Koranda, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI　2006/01
Selective preparation of hard dental tissue -classical and laser treatments comparison International-presentation

T. Dostalova, H. Jelinkova, M. Nemec, P. Koranda, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

SPIE Conference on Lasers in Dentistry XII　2006/01
Development of optical biopsy system for small experimental animals International-presentation

H. Sato, Y. Hattori, Y. Oshima, Y. Komachi, T. Katagiri, T. Asakura, T. Shimosegawa, Y. Matsuura, M. Miyagi, G. Kanai, N. Ura, K. Masutani, H. Tashiro

SPIE Conference on Optical Biopsy VI　2006/01
Delivery of 10-MW Nd:YAG laser pulses by bundled hollow fibers International-presentation

O. Yilmaz, Y. Matsuura, M. Miyagi

IQEC and CLEO-PR2005　2005/07
Single-mode operation in silica-core Bragg fibers International-presentation

T. Katagiri, Y. Matsuura, M. Miyagi

Optical Fiber Communication Conference　2005/02
Silica-core bragg fibers International-presentation

T. Katagiri, Y. Matsuura, M. Miyagi

2nd International Symposium on System Construction of Global-Network Oriented Information electronics　2005/02
Metal-coated capillary optics for soft x-ray International-presentation

Y. Matsuura, T. Oyama, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications V　2005/01
Application of hollow glass waveguides in urological treatment International-presentation

M. Nemec, P. Koranda, H. Jelinkova, M. Cech, O. Kohler, P. Drlik, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Applications V　2005/01
Compact hollow glass waveguide system for Er:YAG laser ablation International-presentation

H. Jelinkova, M. Nemec, P. Koranda, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Applications V　2005/01
Er:YAG laser absation: 5-11 years prospective study International-presentation

T. Dostalova, H. Jelinkova, M. Miyagi, J.. Sulc, M. Nemec

SPIE Conference on Lasers in Dentistry XI　2005/01
Theoretical characteristics of waveguide optical polarization splitters using dielectric periodic multilayers International-presentation

K. Baba, Y. Sone, M. Miyagi

SPIE Conference on Physics and Simulation of Optoelectronic Devices XIII　2005/01
Fragmentation characteristics of various calculi evaluated by using hollow fibers for Er:YAG laser light International-presentation

K. Iwai, Y. Shi, Y. Matsuura, M. Miyagi, S. Saito, Y. Arai

SPIE Conference on Optical Fibers and Sensors for Medical Applications V　2005/01
Hollow fibers for medical applications International-presentation

Y. Matsuura

The Second Asian and Pacific Rim Syposium on Biophotonics　2004/12
Delivery of high peak power light through hollow waveguide fibres for particle image velocimetry International-presentation

J. Parry, T. J. Stephens, J. D. Shephard, Y. Matsuura, Y. Shi, M. Haste, D. P. Towers, M. Miyagi, J. D. C. Jones, D. P. Hand

12th International Symposium on Applications of Laser Techniques to Fluid Mechanics　2004/07
Fabrication of silica-core photonic bandgap fiber with multilayer cladding International-presentation

T. Katagiri, Y. Matsuura, M. Miyagi

Optical Fiber Communication Conference　2004/02
Root canal surface after application x-ray opaque waveguide International-presentation

T. Dostalova, H. Jelinkova, J. Sulc, M. Nemec, P. Radina, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Lasers in Dentistry X　2004/01
Transmission properties of hollow glass fibers for the infrared fabricated by glass-drawing technique International-presentation

R. Kasahara, T. Katagiri, Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications IV　2004/01
Sealed hollow waveguide for catheter-based pulsed photodynamic therapy International-presentation

S. Sato, S. Kawauchi, Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications IV　2004/01
Dynamic absorption coefficient of water for high-density Er:YAG laser radiation International-presentation

K. Iwai, M. Endo, K. Ito, Y. Shi, Y. Matsuura, M. Miyagi, H. Jelinkova

SPIE Conference on Optical Fibers and Sensors for Medical Applications IV　2004/01
Hollow waveguide for giant Er:YAG laser pulses transfer International-presentation

M. Nemec, H. Jelinkova, P. Koranda, M. Cech, J. Sul, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Applications IV　2004/01
Hollow-core fibers for laser delivery and their applications International-presentation

Y. Matsuura

Taiwan-Japan Optoelectronics Workshop　2003/12
Silica-core photonic bandgap fiber having multilayered claddings International-presentation

T. Katagiri, Y. Matsuura, M. Miyagi

International Mini-Conference on Information Electronics System　2003/11
Infrared hollow optical fibers and their applications in medicine International-presentation

Y. Shi, Y Matsuura, K. Iwai, T. Katagiri, M Miyagi

Eighth International Conference on Laser and Laser Information Technologies　2003/09
High energy radiation delivery by hollow waveguides in mid-infrared spectral region International-presentation

M Nemec, H. Jelinkova, J. Sulc, P. Cerry, M. Miyagi, K. Iwai, Y. Abe, Y. Shi, Y. Matsuura

WORKSHOP2003 at Czech Technical university　2003/02
Delivery system with hollow waveguide for ophthalmology tratment International-presentation

H. Jelinkova, M. Nemec, J. Sulc, M. Cech, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura, J. Pasta

WORKSHOP2003 at Czech Technical university　2003/02
Calculi fragmentation of Er:YAG laser light through a sealed flexile hollow fiber delivery system International-presentation

K. Iwai, Y. Shi, K. Nito, Y. Matsuura, T. Kasai, M. Miyagi, S. Saito, Y. Arai, N. Ioritani, Y. Okagami, M. Nemec, J. Sulc, H. Jelinkova

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Infrared hollow-glass fiber produced by fiber drawing technique International-presentation

Y. Matsuura, R. Kasahiara, T. Katagiri, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Hollow waveguide delivery of high-peak-power red light for photodynamic therapy International-presentation

S. Sato, S. Kawauchi, Y. Shi, Y. Matsuura, M. Miyagi, H. Ashida

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Delivery of high-energy radiation in mid-infrared spectral region by hollow waveguides International-presentation

M. Nemec, H. Jelinkova, J. Sulc, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Infrared medical laser system with hollow optical fiber International-presentation

Y Okagami, M. Nishimura, J. Oishi, Y. Shi, Y. Matsuura

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Status and improvements of the UV laser scalpel International-presentation

M. Kohler, H. Dietz, Y. Matsuua, M. Miyagi, K. Klein, G. Hillrichs

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Hollow waveguides delivery system for the ophthalmology treatments International-presentation

H. Jelinkova, M. Nemec, J. Sulc, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura, J. Pasta

SPIE Conference on Optical Fibers and Sensors for Medical Applications III　2003/01
Optical properties and surface structure comparison of tooth whitening using four laser system and chemical action agents International-presentation

T. Dostalova, H. Jelinkova, P. Koranda, J. Sulc, M. Nemec, D. Housova, M. Miyagi

SPIE Conference on Lasers in Dentistry IX　2003/01
Experimental contact and non-contact Er:YAG laser changes of human cornea International-presentation

J. Pasta, H. Jelinkova

International Symposium on Cornea and Contact Lenses　2002/12
Fabrication of a Rugged, Polymer-Coated Hollow Fiber for the Infrared International-presentation

K. Iwai, Y. Abe, Y. Shi, Y. Matsuura, M. Miyagi, J. Ohishi, Y. Okagami

BOPM2002　2002/10
X-ray opaque waveguide for dentistry International-presentation

T. Dostalova, H. Jelinkova, J. Sulc, M. Nemec, M. Miyagi

Laser Florence 2002: A window on the laser medicine world　2002/10
Rugged hollow fiber for the infrared and its use in laser lithotripsy International-presentation

K. Iwai, Y. Shi, Y. Matsuura, M. Miyagi

PhotonicsASIA2002　2002/10
High power laser radiation delivery International-presentation

H. Jelinkova, M. Nemec, J. Sulc, P. Cerry, M. Miyagi, Y. Shi, Y. Matsuura

The XIV international Symposium On Gas Flow & Chemical Lasers and High Power Laser Conference　2002/08
Different influence of long and short mid-infrared laser pulses on eye tissue International-presentation

H. Jelinkova, J. Pasta, M. Nemec, J. Sulc, M. Miyagi, Y. Shi, Y. Matsuura, M. Jelinek

11th International Laser Physics Workshop　2002/07
Changes in eye tissues caused by Er:YAG laser radiation delivered by sealed hollow waveguide International-presentation

J. Pasta, H. Jelinkova, M. Nemec, M. Miyagi

Symposium on Cataract, IOL, and Refractive Surgery　2002/06
Q-switched Er:YAG radiation transmission through medical COP-coated siliver hollow glass waveguide International-presentation

N. Anastasopoulou, B. Klinkeberg, D. Papadopoulos, I. Papagiakoumou, A. A. Serafetinides, Y. Shi, Y. Matsuura, M. Miyagi

Conference on Lasers, Applications, and Technologies　2002/06
Femtosecond-pulse delivery by hollow fibers International-presentation

Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications II　2002/01
Hollow-waveguide-based laser-to-ultrasound transducer for drug delivery application International-presentation

S. Sato, M. Ogura, M. Obara, Y. Shi, Y. Matsuura, M. Miyagi, H. Ashida

SPIE Conference on Optical Fibers and Sensors for Medical Applications II　2002/01
Flexible beam guiding in a microsurgical UV laser scalpel International-presentation

G. Hillrichs, H. Dietz, S. Schastak, P. Wiedemann, Y. Matsuura, M. Miyagi, K. Klein

SPIE Conference on Optical Fibers and Sensors for Medical Applications II　2002/01
Transmission characteristics of sealed hollow waveguides for Er:YAG laser radiation and their application in the opthalmokogy International-presentation

H. Jelinkova, M. Nemec, J. Sulc, J. Pasta, K. Iwai, Y. Abe, Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications II　2002/01
Hollow bent output devices in CO2 laser light delivery system International-presentation

K. Iwai, Y. Shi, Y. Matsuura, M. Miyagi, J. Oishi, Y. Okagami

SPIE Conference on Optical Fibers and Sensors for Medical Applications II　2002/01
Sealed hollow fibers for medical Er:YAG lasers International-presentation

Y. Matsuura, S. Mohri, Y. Shi, M. Miyagi

SPIE Conference on Infrared Optical Fibers and Their Applications II　2001/11
Hollow fibers for delivery of F2-excimer laser light International-presentation

Y. Matsuura

3rd International UV Laser Symposium for 157 nm Applications　2001/11
Infrared-laser delivery system using hollow fibers International-presentation

Y. Matsuura, Y. Abe, S. Mohri, Y. Shi, M. Miyagi

SPIE Conference on Infrared Optical Fibers and Their Applications II　2001/11
YAG laser in ophthalmology International-presentation

H. Jelinkova, J. Pasta, J. Sulc, M. Nemec, M. Miyagi, Y. Shi, Y. Matsuura

Laser Florence 2001: A Window on the laser medicine World　2001/11
Cylindrical waveguide formed of multilayered film having 1D-photonic bandgap structure International-presentation

Y. Matsuura, T. Katagiri, M. Miyagi

SPIE Conference on Materials and Devices for Photonic Circuits II　2001/08
医用中空ファイバ

第16回生体・生理工学シンポジウム　2001/08
Hollow fiber delivery of Q-switched, multiple-order Nd:YAG laser light International-presentation

Y. Matsuura, T. Yamamoto, G. Takada, Y. Shi, M. Miyagi

EUROPTO Biomonitoring and Endoscopy Technologies　2001/07
Er:YAG laser delivery system for dental application using small-bore hollow fibers International-presentation

Y. Abe, K. Iwai, S. Mohri, Y. Shi, Y. Matsuura, M. Miyagi

CLEO /Pacific Rim ''01　2001/07
Mid-infrared lasers for transmyocardial laser revascularization International-presentation

H. Jelinkova, M. Nemec, J. Sulc, D. Dvoracek, V. Kubecek, M. Vrbova, P. Cerny, J. Kvasnicka, M. R. Kokta, M. Miyagi

Clinical Lasers and Diagnostics　2001/07
Sealing technique for infrared hollow fibers International-presentation

Y. Matsuura, N. Kobayashi, S. Mohri, Y. Abe, Y. Shi, T. Kasai, M. Miyagi

CLEO /Pacific Rim ''01　2001/07
NdYAP 1.34 mm/1.08 mm laser passively mode-locked/Q-switched by V3+:YAG/BDN II saturable absorbers with efficient COP/Ag hollow glass waveguide radiation delivery International-presentation

H. Jelinkova, P. Cerny, J. Sulc, J. K. Jaczynski, K. Kopczynski, W. Zendzian, Z. Mierczyk, M. Miyagi

CLEO/Europe-EQEC Focus Meetings 2001　2001/06
Endodontic treatment with application Er:YAG laser radiation disinfection International-presentation

T.Dostalova, H. Jelinkova, D. Housova, J. Sulc, M. Nemec, J. Duskova, M. Kratky, M. Miyagi

Laser 2001 -world of Photonics　2001/06
Output beam quality investigation of medical infrared and mid-infrared waveguides and fibers International-presentation

A. A. Serafetinides, G. Chourdakis, N. Anastasopoulou, A. Inberg, N. Croitoru, M. Miyagi

Biomonitoring and Endoscopy Technologies　2001/03
Polymer-coated silver hollow glass waveguides for delivery of first and second harmonic Nd:YAG laser picosecond pulses International-presentation

H. Jelinkova, P. Cerny, J. Sulc, V. Kubecek, M. Miyagi, Y. Shi, Y. Matsuura

Biomonitoring and Endoscopy Technologies　2001/03
Advanced waveguides for laser medicine systems International-presentation

H. Jelinkova, J. Sulc, P. Cerny, M. Nemec, M. Cech, V. Kubecek, A. Novotny, M. Miyagi, Y. Shi, Y. Matsuura, T. Dostalova, J. Pasta, J. Kvasnicka

WORKSHOP2001 PartA　2001/02
Ablation effect comparison of soid-state mid-infrared lasers applied for TMLR International-presentation

H. Jelinkova, M. Nemec, V. Kubecek, J. Sulc, J. Kvasnicka, M. R. Kokta, M. Miyagi, Y. Shi, Y. Matsuura

SPIE Conference on Diagnostics and Therapeutic Cardiovascular Interventions XI　2001/01
Delivery of powerful radiation in visible spectral region by special waveguides International-presentation

H. Jelinkova, M. Miyagi, J. Sulc, P. Cerry, Y. Shi, Y. Matsuura, G. Takada

SPIE Conference on Optical Fibers and Sensors for Medical Applications　2001/01
医療用中空光ファイバの現状

レーザー学会学術講演会第21回年次大会　2001/01
Pilot beams for polymer-coated silver hollow glass fibers International-presentation

Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Optical Fibers and Sensors for Medical Applications　2001/01
Myocardium tissue ablation with hollow-waveguide-delivered, near-infrared, nanosecond laser pulses International-presentation

S. Sato, T. Arai, Y. Shi, Y. Matsuura, M. Miyagi, H. Ashida

SPIE Conference on Optical Fibers and Sensors for Medical Applications　2001/01
Hollow fibers for delivery of F2-excimer laser light International-presentation

Y. Matsuura

3rd International UV Laser Symposium for 157 nm Applications　2000/11
中空ファイバによる高出力レーザ光伝送

電子情報通信学会ソサイエティ大会　2000/10
Special hollow-glass waveguides for medical applications International-presentation

H. Jelinkova, J. Sulc, P. Cerry, M. Nemec, M. Cech, M. Miyagi, Y. Shi, Y. Matsuura

2000 CLEO Europe　2000/09
Development of hollow fiber transmitting infrared light International-presentation

J. Oishi, Y. Okagami, M. Odaka, M. Kawashima, Y. Shi, Y. Matsuura, M. Miyagi

7th Congress of the International Society for Lasers in Dentistry　2000/07
Glass waveguide polarizer using artificial birefringent cladding layer International-presentation

K. Baba, T. Iden, M. Miyagi

Lasers and Electro-optics Society Italian Chapter　2000/06
Hollow fibers for delivery of high-power lasers International-presentation

Y. Matsuura, M. Miyagi

SPIE International Symposium on High-Power Laser Ablation 2000　2000/04
Polymer-coated hollow fibers for medical infrared lasers International-presentation

Y. Shi, Y. Abe, Y. Matsuura, M. Miyagi

SPIE Conference on Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II　2000/01
Nd:YAG picosecond pulses delivery by cyclic olefin polymer-coated silver hollow glass waveguides International-presentation

H. Jelinkova, M. Miyagi, P. Cerny, J. Sulc, Y. Matsuura, Y. Shi

SPIE Conference on Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II　2000/01
Vacuum-cored hollow waveguide for high-nergy, high-intensity laser transmission and its application to biological tissue ablation International-presentation

S. Sato, T. Arai, Y. Shi, Y. Matsuura, M. Miyagi, H. Ashida

SPIE Conference on Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II　2000/01
Tuned alexandrite laser for dentistry International-presentation

J. Sulc, H. Jelinkova, T. Dostalova, M. Miyagi

PhotonicsWEST　2000/01
Patterned submicrometer-thick optical polarizing films using stretched silver island multilayers International-presentation

K. Baba, Y. Sato, T. Yoshitaka, M. Miyagi

Micro-and nano-photonic materials and devices　2000/01
Laser radiation propagation in the hard and soft dental tissues International-presentation

T. Dostalova, H. Jelinkova, J. Sulc, P. Cenny, M. Nemec, M. Cech, J. Duskova, M. Kr''tk, M. Miyagi

SPIE Conference ofn Lasers in Dentistry VI　2000/01
Aluminum-hollow fiber delivery system for excimer lasers International-presentation

Y. Matsuura, T. Yamamoto, M. Miyagi

SPIE Conference on Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II　2000/01
Hollow fibers for Nd:YAG and excimer lasers International-presentation

Y. Matsuura, T. Yamamoto, G. Takada, M. Miyagi

SPIE Conference on Optical Pulse and Beam Propagation II　2000/01
Compact effector optics for processing in limited physical access situations International-presentation

A. Kuhn, S. Hettrick, D. P. Hand, Y. Shi, Y. Matsuura, M. Miyagi, C. L. M. Ireland, J. D. C. Jones

ICALEO ''99　1999/11
Hollow-core, lensed-taper launching coupler for Er:YAG laser light International-presentation

Y. Matsuura, M. Yaegashi, M. Miyagi

SPIE Conference on Infrared Optical Fibers and Their Applications　1999/09
Delivery of high-energy, infrared-laser pulses by polymer-coated hollow fibers International-presentation

Y. Matsuura, K. Hanamoto, Y. Shi, Y. Abe, M. Miyagi

SPIE Conference on Infrared Optical Fibers and Their Applications　1999/09
Small-bore, polymer-coated hollow fibers for medical infrared lasers International-presentation

Y. Abe, Y. Matsuura, M. Miyagi

CLEO/Pacific Rim ''99　1999/09
Nd:YAG picosecond pulses delivery by cyclic olefin polymer-coated silver hollow glass waveguides International-presentation

H. Jelinkova, J. Sulc, M. Miyagi, Y. Matsuura, Y. Shi

CLEO/Pacific Rim ''99　1999/09
Recent progress of polymer-coated hollow fibers International-presentation

Y. Matsuura, Y. Shi, M. Miyagi

CLEO/Pacific Rim ''99　1999/09
Hollow fibers for high-power lasers International-presentation

Y. Matsuura, M. Miyagi

SPIE Conference on Optical Pulse and Beam Propagation　1999/01
Hollow fiber delivery of ArF and KrF excimer laser light International-presentation

Y. Matsuura, M. Miyagi

SPIE Conference on Specialty Fiber Optics for Medical Applications　1999/01
Delivery of high-powered picosecond pulses in near-IR region by special silver hollow glass waveguides International-presentation

H. Jelinkova, M. Miyagi, J. Sulc, P. Cenny, Y. Wang, Y. Shi

SPIE Conference on Specialty Fiber Optics for Medical Applications　1999/01
Contact and non-contact laser preparation of hard dental tissues by Er:YAG laser radiation delivered by hollow glass waveguide or articulated arm International-presentation

T. Dostalova, H. Jelinkova, M. Miyagi, M. Nemec, K. Hamal, O. Krejsa

SPIE Conference on Lasers in Dentistry V　1999/01
E:YAG and alexandrite laser radiation propagation in the root canal and its effect on bacteria International-presentation

H. Jelinkova, T. Dostalova, J. Duskova, M. Miyagi, S. Shoji, J. Sulc, M. Nemec

SPIE Conference on Lasers in Dentistry V　1999/01
Hollow-waveguide-based transmission of Q-switched Nd:YAG laser beam for biological tissue ablation International-presentation

S. Sato, H. Ashida, Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Specialty Fiber Optics for Medical Applications　1999/01
Smart polymer-coated hollow fibers International-presentation

Y. Shi, Y. Matsuura, M. Miyagi

SPIE Conference on Specialty Fiber Optics for Medical Applications　1999/01
Pulsed 3 mm laser radiation transmission through hollow plastic and hollow glass waveguides International-presentation

A. A. Serafetinides, K. R. Rickwood, E. T. Fabrikesi, G. Chourdakis, N. Anastassopoulou, Y. Matsuura, Y. Shi, M. Miyagi, N. Croitoru

EUROPTO Conference on Delivery Systems and Materials for IR and UV Fibers and Waveguides　1998/09
Lensed-taper launching coupler for high energy Er:YAG laser International-presentation

Y. Matsuura, H. Hiraga, M. Miyagi

EUROPTO Conference on Delivery Systems and Materials for IR and UV Fibers and Waveguides　1998/09
Dental Er:YAG laser system International-presentation

H. Jelinkova, T. Dostalova, M. Miyagi, Y. Wang, Y. Shi, K. Hamal, O. Krejsa, J. Kubelka, S. Prochazka

CLEO/Europe ''98　1998/09
New cyclic olefin polymer-coated silver hollow glass waveguides for the near-infrared to mid infrared International-presentation

Y. Shi, K. Hanamoto, Y. Wang, Y. Abe, Y. Matsuura, S. Sato, M. Miyagi

EUROPTO Conference on Delivery Systems and Materials for IR and UV Fibers and Waveguides　1998/09
High power hollow fibers International-presentation

Y. Matsuura, M. Miyagi

SPIE Conference on High-Power Laser Ablation　1998/04
Fabrication of hollow fibers for CO2 laser by using MOCVD method International-presentation

Y. Matsuura, D. Miura, M. Miyagi

SPIE Surgical-assist systems　1998/01
Transmission characteristics of fluorocarbon polymer-coated silver hollow glass waveguide International-presentation

Y. Wang, Y. Shi, Y. Matsuura, M. Miyagi

SPIE Biomedical Systems and Technologies II　1997/09
Beam homogenizer for infrared hollow waveguides using silver-halide fibre tip International-presentation

Y. Matsuura, M. Miyagi, A. German, L. Nagli, A. Katzir

SPIE Biomedical Systems and Technologies II　1997/09
Hydrocarbon-polymer coated hollow glass fiber for CO2 laser International-presentation

T. Shimomura, H. Uyama, Y. Matsuura, M. Miyagi

CLEO /Pacific Rim ''97　1997/07
Hollow waveguides for medical infrared lasers International-presentation

M. Miyagi, Y. Matsuura

CLEO /Pacific Rim ''97　1997/07
Lensed taper coupler for hollow waveguides International-presentation

H. Hiraga, Y. Matsuura, Y. Wang, M. Miyagi, S. Abe, S. Onodera

SPIE Specialty Fiber Optics for Biomedical and Industrial Application　1997/02
Fabrication of robust hollow waveguide devices for Er:YAG laser light International-presentation

Y. Wang, H. Hiraga, Y. Matsuura, M. Miyagi

SPIE Specialty Fiber Optics for Biomedical and Industrial Application　1997/02
Hollow fiber beam delivery systems International-presentation

Y. Matsuura, M. Miyagi

XI International Symposium on Gas Flow and Chemical Lasers & High Power Laser Conference　1996/08
Hollow glass waveguides with CVD-deposited metal and dielectric-coatings International-presentation

Y. Matsuura, J. A. Harrington

SPIE Biomedical Fiber Optics　1996/01
Review of hollow waveguide technology International-presentation

J. A. Harrington, Y. Matsuura

SPIE Biomedical Fiber Optics　1995/02
New Y-junction design for silica-based waveguide and its application to 2×N couplers International-presentation

Y. Matsuura, C. Hirose, E. Sasaoka, T. Hattori, H. Kanamori

Fifth Optoelectronics Conference OEC ''94　1994/07
Fabrication and transmission properties of ZnS-coated Ag waveguides for Er:YAG, CO, and CO2 laser light International-presentation

Y. Matsuura, T. Kameno, M. Miyagi

SPIE Biomedical Optics Europe ''93　1993/09
Non-Toxic Dielectric-Coated Metallic Waveguides for Medical Lasers International-presentation

Y. Matsuura, M. Miyagi

IEEE/LEOS 92　1992/11
ZnSe-coated Ag waveguide for CO2 laser light transmission International-presentation

Y Matsuura, M. Miyagi

SPIE Infrared Fiber Optics III　1991/11
Hollow IR waveguides International-presentation

M. Miyagi, A. Hongo, Y. Matsuura

SPIE Infrared Fiber Optics II　1990/01

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Industrial Property Rights 63

眼科装置

松浦祐司, 大嶽太知, 足立宗之

特許第7504390号

Property Type: Patent
スペクトル測定装置およびスペクトル測定方法

松浦祐司, 柴田尚登

特許第7174952号

Property Type: Patent
復調方法及び復調装置

松元繁明, 高田興志, 松浦祐司, 岩田靖, 森山幸弘

特許第3949545号

Property Type: Patent
X線用光学素子およびその製造方法

松浦祐司, 宮城光信

特許第3923180号

Property Type: Patent
ガラス中空光ファイバの製造方法

松浦祐司, 宮城光信, 片桐崇史

特許第3877152号

Property Type: Patent
光ブランチングデバイスおよび光学部品

松浦祐司, 笹岡英資, 金森弘雄

特許第3596917号

Property Type: Patent
アルミニウム中空導波路およびその製造方法

松浦祐司, 宮城光信

特許第3341007号

Property Type: Patent
血糖値測定装置および血糖値測定方法

松浦祐司, 橋本順一

Property Type: Patent
生体分析装置

松浦祐司, 佐々木亮太

Property Type: Patent
眼科装置

松浦祐司, 大嶽太知, 足立宗之

Property Type: Patent
スペクトル測定装置およびスペクトル測定方法

松浦祐司, 柴田尚登

Property Type: Patent
測定装置、及び測定方法

笠原亮介, 松浦祐司

Property Type: Patent
中空光ファイバー、内視鏡装置、及び中空光ファイバーの製造方法

新海優樹, 松浦祐司

Property Type: Patent
中空光ファイバー，内視鏡装置，及び中空光ファイバーの製造方法

Property Type: Patent
赤外分光法を用いた非侵襲血糖値測定方法

松浦祐司, 木野彩子

Property Type: Patent
経穴光刺激装置

松浦祐司, 横山梨香

Property Type: Patent
気道内ガス分析装置

松浦祐司

Property Type: Patent
歯科診断装置

松浦祐司, 笹澤周平

Property Type: Patent
気道内ガス分析装置

松浦祐司

Property Type: Patent
経穴光刺激装置

横山梨香, 松浦祐司

Property Type: Patent
歯科診断装置

松浦祐司, 笹澤周平

Property Type: Patent
赤外分光法を用いた非侵襲血糖値測定方法

松浦祐司, 木野彩子

Property Type: Patent
光ガイドシステム

松浦祐司, 宗形光敏

Property Type: Patent
光音響画像化装置

松浦祐司

Property Type: Patent
光ガイドシステム

松浦祐司, 宗形光敏

Property Type: Patent
光音響画像化装置

松浦祐司

Property Type: Patent
ガス分光分析装置

松浦祐司, 片桐崇史

Property Type: Patent
ガス分光分析装置

松浦祐司, 片桐崇史

Property Type: Patent
光ファイバ製作方法

Property Type: Patent
赤外分光用プローブ

松浦祐司, 木野彩子

Property Type: Patent
赤外分光用プローブ

Property Type: Patent
医療用レーザ装置

松浦祐司, 岩井克全

Property Type: Patent
医療用レーザ装置

Property Type: Patent
物体検知装置および物体検知方法

松浦祐司

Property Type: Patent
蛍光体の発光特性評価法

松浦祐司, 宮城光信

Property Type: Patent
アルミニウム中空光ファイバ

松浦祐司, 宮城光信

Property Type: Patent
X線用伝送路

松浦祐司, 宮城光信

Property Type: Patent
Ｘ線用伝送路

Property Type: Patent
蛍光体の発光特性評価法

Property Type: Patent
アルミニウム中空光ファイバ

Property Type: Patent
ビームホモジナイザ

Property Type: Patent
ガラス中空ファイバの製造方法

Property Type: Patent
フェムト秒レーザ伝送用ファイバ,フェムト秒レーザ伝送用ファイバを使用したレーザ加工装置及びレーザ加工方法。

松浦祐司, 四方山和彦, 河内雅子

Property Type: Patent
フェムト秒レーザ伝送用ファイバ，フェムト秒レーザ伝送用ファイバを使用した加工装置，およびレーザ加工方法

Property Type: Patent
高強度中空ファイバ

宮城光信, 松浦祐司, 石芸尉, 阿部由起雄, 岩井克全

Property Type: Patent
中空導波路端面封止キャップ

宮城光信, 松浦祐司, 相澤芳三

Property Type: Patent
中空導波路端面封止キャップ

Property Type: Patent
中空導波路端面封止用キャップ

宮城光信, 松浦祐司, 阿部由起雄

Property Type: Patent
中空導波路端面封止用キャップ

Property Type: Patent
中空導波路の端面封止法

Property Type: Patent
Ｘ線用光学素子およびその製造方法

Property Type: Patent
アルミニウム中空導波路およびその製造方法

松浦祐司, 宮城光信

Property Type: Patent
光導波路の製造方法

金森弘雄, 広瀬智財, 松浦祐司

Property Type: Patent
光ブランチングデバイスおよび光学部品

松浦祐司, 笹岡英資, 金森弘雄

Property Type: Patent
光ブランチングデバイスおよび光学部品

Property Type: Patent
光ブランチングデバイスおよび光学部品-

Property Type: Patent
光ブランチングデバイスおよび光学部品

松浦祐司, 笹岡英資, 金森弘雄

Property Type: Patent
Hollow waveguide for ultraviolet light and making the same

6,141,476

Property Type: Patent
アルミニウム中空導波路およびその製造方法

3341007

Property Type: Patent
Optical branching device

5,586,209

Property Type: Patent
Optical branching device

5,627,928

Property Type: Patent
Optical branching device

EP0651268B1

Property Type: Patent
Optical branching device

EP0651267B1

Property Type: Patent

Show all Show first 5

Research Projects 63

キャピラリバンドル型光学素子の研究 Competitive

1998/04 - Present
紫外－真空紫外光伝送路の研究 Competitive

1995/04 - Present
Laser power delivery by hollow wareguides. Competitive

1988/03 - Present
歯牙硬組織内の光伝搬解析と歯髄血流測定による非侵襲歯髄診断システムの開発

柿野聡子, 松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東京医科歯科大学

2023/04/01 - 2026/03/31
中赤外光を用いた光超音波ハイパースペクトラルイメージング

松浦祐司, 木野彩子

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 挑戦的研究(萌芽)

Institution: 東北大学

2022/06/30 - 2024/03/31

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本研究はパルス変調した中赤外光を生体組織に照射した際に，組織内部で発生する超音波を検出することにより，生体分子のスペクトル情報と，ビームスキャンによる面内構造情報の両方を含むハイパースペクトル画像を得る手法のフィジビリティスタディーを行うことを目的とする．今年度は基礎的検討として，はじめに生体組織のスペクトル取得を行った．サンプルとしては，生体模擬試料としてブドウ糖を添加したゼラチンや，ヒト耳たぶなどを対象とし，波長8～10ミクロンで発振する波長可変QCLを使用し，試料内部で発生した超音波は，サンプル表面に押し付けた圧電セラミクス（PZT）トランスデューサで検出した．得られた分光スペクトルについて，ATR法によって得られたスペクトルと比較した結果，吸収係数に対して非線形なスペクトルが得られたが，多変量解析などを用いれば特定成分の濃度変化を検出可能なことがわかった．また，試料の厚さを変化させると，試料中の超音波の波長に応じて発生する定在波が生じ，その条件下では非常に強力な信号が得られることがわかり，本手法の感度向上が可能なことがわかった．さらに，励起用の中赤外レーザ光を２次元的に走査するシステムを構築し，生体試料のハイパースペクトル画像の取得を試みた．試料は牛肉片とし，あらかじめ測定した筋肉と脂肪の標準試料のスペクトルを用い，試料の測定点ごとの成分を判別分析することにより，成分に応じた画像の取得に成功したため，本手法の将来的な実用性についての見通しが示された．
反射型光プレチスモグラフィを用いた歯髄活性度診断システムの構築

横山梨香, 松浦祐司, 柿野聡子, 木野彩子

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東北大学

2021/04/01 - 2024/03/31

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本研究は，市販の脈波検出用ICチップを歯牙の表面に装着して検出される，拡散反射光から歯髄の活性度診断を行う光電脈波法（光プレチスモグラフィ）システムの構築を最終的な目的としている．これを実現するために，歯髄からの光電脈波を精密に測定可能なシステムを構築し，得られた脈波から算出される加速度脈，および同時に測定した心電図との時間差から得られる脈波伝播時間（PTT）を利用して，より正確な歯髄脈波分析を行おうとするものである．従来用いられていた透過光を検出する手法では，組織の厚い臼歯からの脈波検出は困難であった．そこで，AD変換を搭載されたICチップを用いることで光学脈波が測定できないかと考え，本年度はシステムの構築を行った．使用したチップは光学脈波センサIC（ローム社, BH1790GLC，サイズ2.8 mm角）であり，このチップを歯の表面に装着することによって脈波検出を試みた．装着方法として，マウスピースの中にチップを埋め込み実験を行ったが実際測定したい歯への照射ズレが生じた．そこで歯科用ワックスで歯型を取りICチップを埋め込むことで安定した測定が行えることができた．しかし，測定された信号には，脈動が生じており安定した測定が困難であった．脈動は身体の呼吸や体動から生じる信号であるため，センサの信号出力に５Hz程度のHPF回路を入れることにより脈動を抑えることに成功した．また，LED照射電流値を5 mA～10 mAに変化して測定を行い，歯髄脈波と同時に指尖脈波の計測を行った．臼歯で観測された信号は指尖脈波と同じ周波数で変動し，フーリエ解析を行ったところ1 Hz付近にピークを観測できたことから困難とされていた臼歯の歯髄脈波の測定に成功した．
Breakthrough in non-invasive blood analysis using mid-infrared light

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2020/04/01 - 2024/03/31
Non-invasive prediction of blood lipid concentrations by mid-infrared attenuated total reflection measurement on the body surface

Kino Saiko

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2020/04/01 - 2023/03/31

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To measure blood lipid concentrations noninvasively, we attempted to predict blood lipid concentrations by multivariate analysis of infrared absorption spectra of human skin surface using an optical technique based on attenuated total reflection (ATR) in the mid-infrared region. The PLS prediction of blood TG concentration by one-off cross-validation showed a correlation coefficient of about 0.6 with the measured value, and that of blood LDL/HDL cholesterol concentration with the measured value was 0.8 or higher, which is relatively good. The regression line and the contribution of each absorptive wave number among different subjects were also consistent. Furthermore, for each cholesterol, predictability from a single absorption intensity was demonstrated, although the accuracy was lacking.
歯髄光電脈波の定量解析による歯髄の血行動態および機能評価に関する研究

柿野聡子, 松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東京医科歯科大学

2019/04/01 - 2023/03/31

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歯髄は血管や神経、リンパ管などから構成され、歯に栄養を供給する組織である。歯髄の病態診断は、歯科治療における治療方針の決定、歯髄保存の可否において重要な判断材料となるため、正確な診断が求められる。これまでの研究により、LED(Light emitting diode)の透過光を利用した透過型光電脈波測定（TLP; Transmitted-light plethysmography）より、歯髄の生活反応を血流の有無という観点より非侵襲的に診断できるようになった。しかし、小児患者の外傷歯の歯髄血流測定より、歯髄血液は存在しても必ずしも健全歯髄と言えないケースも多いことがわかってきた。本研究では、歯髄の容積脈波（歯髄脈波）の特性を多角的に定量解析し、歯髄血液の有無に加え、加齢や外傷による歯髄の血管弾性の変化、機能や病態の変化など、歯の健康度についての情報を抽出する方法を確立することを目的とし、従来の診断法と併用することでより信頼性の高い歯髄診断を目指している。 2021年度は前年度に引き続き、成人の健全歯を対象とし、歯髄脈波の伝搬時間(Pulse transit time; PTT)のデータ収集を行った。PTTは容積脈波が心臓から末梢へ到達する時間のことで、増齢に伴う血管壁の変化や伸張性を反映すると言われており、心電図のR波と容積脈波のピークの位相のずれを測定する。現在のところ、歯のPTTの報告はされていない。加齢や動脈硬化による変化を調べるため20～50代の成人被験者のPTTより統計解析を行っている。
Development of mid-infrared hollow core waveguide for GIGMICS on the new telescope at Haleakala

HIRAHARA Yasuhiro

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Nagoya University

2019/04/01 - 2022/03/31

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Characterization of a new type of hollow fiber for highly efficient and stable optical coupling between a mid-infrared high dispersion spectrograph (GIGMICS), which operates under liquid nitrogen temperature cooling, and an optical-infrared telescope PLANETS, which uses a 1.85 mφ aperture off-axis parabolic plane as a primary mirror, and a new type of hollow fiber for infrared cooling. evaluation. For this purpose, a new type of associate common optical path wavefront-dividing phase-shifting interferometer was introduced to quantitatively characterize the properties of the infrared hollow fiber and its performance was evaluated. We also produced and evaluated the performance of the world's first 1D hollow fiber bundle using a microlens array, coherent laser light, and various incoherent light sources.
Development principle of hollow infrared waveguide coupler

Katagiri Takashi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

2018/06/29 - 2021/03/31

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The guiding principle of optical coupling based on a hollow optical fiber was clarified to fabricate high-efficiency mid-infrared fiber coupler. In the side-polished fiber coupler structure that shares the core at the branch, the inserted light travels straight toward the branch. Therefore, it was found that the branching ratio of the coupler can be flexibly controlled by the bending angle of the input fiber. Based on this principle, a fiber coupler based on the AgI/Ag hollow optical fiber was fabricated, and a low-cost, high-performance fiber coupler was realized. We have also demonstrated that the proposed fiber coupler can be used in heterodyne spectrometers for planetary observations.
Verification experiments of health examination system based on mid-infrared quantum cascade lasers

Matsuura Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2018/06/29 - 2020/03/31

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In order to develop a healthcare device that can perform various diagnostics such as cholesterol level and blood glucose level without blood sampling by using the mid-infrared quantum cascade laser (QCL), the feasibility study of the measurement system was performed. First, we attempted blood lipid monitoring using an optical method based on ATR spectroscopy. As a result of blood lipid monitoring, it was found that the optical absorption value of triglyceride absorption peak at 1106 cm-1 was highly correlated with blood triglyceride concentration. In addition, PLS regression analysis was performed on the absorption spectrum measured on the lips using a system using a wavelength-swept pulsed QCL, and a good quantitative model was obtained, confirming the feasibility of the system for measuring blood glucose levels.
Development principle of compressive fluorescence imaging using fiber output speckle

Katagiri Takashi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

2017/04/01 - 2020/03/31

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In this research, compressed imaging systems for multi-color fluorescence endoscope were developed. This imaging system is based on fiber-generated speckle illumination and compressed image reconstruction. Illumination patterns with random structure was optimized for fast and fine image reconstruction and a fiber probe with single excitation fiber and bundled correction fibers was fabricated to implement the proposed system in endoscopes. By using the newly developed imaging system, fluorescence images of biological phantoms were successfully reconstructed.
Development of 3D photoacoustic CT with arc tran sducer for finger joint

Saijo Yoshifumi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2017/04/01 - 2020/03/31

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Principles of 3D photoacoustic CT were investigated in order to evaluate inflammatory activity of finger joints in rheumatoid arthritis visualized with photoacoustic signal produced by strong short pulsed light. Ultrasonic sensors were semicircularly arranged to fit the shape of finger and optical fibers were inserted to pass through the light. Laser or strong LED with two different wavelengths were illuminated. Precise algorithm for calculation of the oxygen saturation was developed considering the propagation of light in biological tissue. Finally, visualization of the human finger was successfully visualized by the photoacoustic CT.
Development of non-invasive blood glucose measurement system using quantum cascade lasers with multiple wavelengths

Matsuura Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2017/04/01 - 2020/03/31

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We developed a system using multiple single wavelength quantum cascade lasers (QCL) for non-invasive blood glucose measurement based on infrared absorption spectroscopy. First, we selected two wavelengths: 1152 cm-1 which is one of the absorption wavelengths of glucose molecule, and 1186 cm-1 which does not show absorption. After that, we constructed a system using two QCLs of these wavelengths and measured the absorption spectrum of the lips. In order to reduce the dispersion of the measured values, we solved the non-uniformity of the optical power distribution on the prism surface. Thus, the divergence angle of the incident light was expanded and the incident angle was further reduced. As a result, the variability during repeated measurements was greatly reduced, and a correlation was observed between human blood glucose level and optical absorption level.
Elucidation of glucose metabolism mechanism to improve accuracy of noninvasive blood glucose measurement by infrared ATR measurement

Kino Saiko

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2017/04/01 - 2020/03/31

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The accuracy of the non-invasive blood glucose measurement system was improved. The sugar concentration in human somatic interstitial fluid, which changes before and after feeding, was accessed from the body surface by the mid-infrared ATR method, and the relationship with the blood glucose transition obtained by blood sampling was examined while checking the sugar metabolism process. As a result, it was essential for the infrared absorption spectrum analysis obtained at the body surface to eliminate the influence of absorption spectrum superposition of polysaccharide glycogen or lipids accumulated and stored in somatic cells, which is particularly noticeable during normal blood glucose. Several wavenumber bands were selected by PLS analysis of the acquired spectra, and their absorption intensities led to a linear equation for estimating the blood glucose level by tracing the metabolic time. At the same time, we obtained information about the suitability of the measurement site.
Dental pulp diagnosis based on the periodic analysis of photoplethysmography and vasomotion

Kakino Satoko

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tokyo Medical and Dental University

2016/04/01 - 2020/03/31

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Transmitted-light plethysmography (TLP) is an objective and non-invasive optical method to detect blood volume changes in the dental pulp. As for the vasomotion, the various physiological meanings in the peripheral tissues have been reported. The present study aimed to investigate the effect of autonomic nervous control on pulpal microcirculation. Passive innocuous circulatory stimulus by foot warming to the healthy permanent teeth was investigated. During TLP examination, body temperature, blood pressure, heart rate, and skin blood flow were monitored. TLP and finger plethysmograms were analyzed respectively to calculate the autonomic nervous activity of body and dental pulp. There was no significant serial correlation between the autonomic nervous activity and TLP values. It was considered that the specific characteristics of the anatomical structure and vascular system of the teeth are highly associated with the lack of serial correlation.
Tube-leaky fiber bundle for infrared thermal image transmission

Matsuura Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2016/04/01 - 2018/03/31

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A tube-leaky fiber bundle that is fabricated by a glass drawing technique is proposed for endoscopic, infrared thermal image transmission. A fiber bundle that has 245 cores and each pixel sizes are less than 80 um was fabricated. By setting the thickness of glass wall to a quarter-wavelength optical thickness, light is confined in the air core as a leaky mode with a low loss owing to the interference effect of the thin glass wall. From measurement of the transmission losses, it was found that bundled tube-leaky fibers have reasonably low transmission losses in spite of the small pixel size. Considering applications with rigid endoscopes, an imaging system composed of a 30-cm long fiber bundle and a half-ball lens with a diameter of 2 mm that can be inserted into an endoscope was fabricated. By using this imaging system, it was shown that the minimum detected temperature was 32.0 ℃ and the temperature resolution of the system was around 0.7 ℃ in the body temperature range.
Detection of acupuncture points by impedance measurement and evaluation of optical stimulation effect

Yokoyama Rika

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2015/10/21 - 2018/03/31

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A multi-channel, skin impedance measurement system is developed for evaluation of effect of low-level laser stimulation to acupuncture point. The system measures cole -cole plots of skin impedance to detect acupuncture points where the impedance is lower than other parts. It is shown that, by using an impedance measurement system based on 9-channel matrix electrodes, acupuncture points are electrically detected. Furthermore, effect of low-level laser radiation is quantitatively evaluated by using the system.
Hollow core coherent fiber bundle based on antiresonant reflecting guidance mechanism

Katagiri Takashi, KOBAYASHI Takuya

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2014/04/01 - 2017/03/31

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A bundle of anti-resonant hollow optical fibers was proposed for endoscopic infrared-thermal imaging. A bundle of 245 fibers made of borosilicate glass was fabricated by using a glass drawing technique, and the length and total diameter of the bundle were 90 cm and 1.06 mm, respectively. As designed, the bundle fiber showed low losses in the wavelength range of 3 to 4 um that fit the detection wavelengths of InSb infrared cameras. By considering applications with rigid endoscopes, an imaging system composed of a 30-cm long fiber bundle and a half-ball lens with a diameter of 2 mm that can be inserted into a working channel of endoscopes was fabricated. By using an imaging system with a one-third reduction ratio, an image resolution of around 420 um was successfully obtained with a field-of-view of 2-mm diameter. Another tests showed that the minimum detected temperature was 32.0°C, and the temperature resolution of the system was around 0.7°C.
Tomographic imaging of a cell by laser ultrasound microscope with femto-second laser

SAIJO Yoshifumi, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2014/04/01 - 2017/03/31

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A laser ultrasound microscope with cellular resolution was developed by means of measuring high frequency laser ultrasound signal generated by ultra-short pulsed laser with ZnO thin film sensor. 3T3-L1 cells, which proliferated from fibroblast to adipocyte, were cultured on PET film and observed by the laser ultrasound microscope. C-mode and B-mode images were successfully obtained by the system. The method is capable of measuring sound speed and acoustic impedance and finally visualizes the distribution of Young’s elastic modulus and density within a cell. The method may contribute to the future investigation on cellular biomechanics.
Development of optical fiber probe for all-optic photoacousitc imaging

Matsuura Yuji, SAIJO YOSHIFUMI

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2014/04/01 - 2017/03/31

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In this research, optical fiber probes for endoscopic photoacoustic imaging were developed. This probe consists of a bundle of hollow optical fibers delivering excitation laser beams and a single-mode optical fiber with polymer film at the distal end for acoustic detection. A bundle of extremely thin hollow optical fibers was fabricated to improve the resolution and metal coating was applied on the fiber's end to improve the sensitivity for acoustic wave. By using the newly developed probe, photoacoustic images of biomedical samples were successfully obtained.
Non-invasive and quantitative measurement of dental pulp viability using multiple wavelength Transmitted-light plethysmography (TLP)

Kakino Satoko, MATSUURA Yuji, MIWA Zenzo, AZUSA Yamada, GANBOLD Khongorzul

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Young Scientists (B)

Institution: Tokyo Medical and Dental University

2013/04/01 - 2017/03/31

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Transmitted-light plethysmography (TLP) is a non-invasive objective method that uses a 525-nm LED to detect blood volume change in the pulp. Previous study showed that TLP amplitude is influenced by multiple factors, such as pathological conditions, tooth morphology, dental pulp circulating system, blood oxygen saturation, and so on. The present study aimed to investigate pulpal blood flow with TLP in healthy permanent maxillary incisors in different root formation stages and to assess the influences of body growth of children and tooth color on the TLP amplitude. The results indicated that the TLP amplitude and optical density may be affected by growth and development in children, thus indicating changes in the vascular dynamics of the pulp and hard tissue maturation during root formation stages.
Development of THZ tube-leaky waveguides and optics using them

MATSUURA YUJI, KATAGIRI TAKASHI, KINO SAIKO

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2014/04/01 - 2016/03/31

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This research aims to develop optical devices for terahertz wave based on hollow waveguides. A directional coupler utilizing coupling between tube-leaky waveguides is proposed and it is investigated by using a beam propagation method. As a result, it is found that the coupling length highly depends on the inner diameter of the waveguide and for diameter of 1 mm, a 9-cm long, 50%-division coupler for 200 um wavelength is designed. Then a hollow-waveguide coupler are fabricated by inserting a 80-um thick polyethylene film between two brass strips of 27-cm long having a 3-mm width square slot. The results of measurement of the power shift between waveguides using terahertz time-domain spectroscopy show that 50% power division is obtained at 250 um
Measurement of blood glucose level by using hollow optical-fiber probe based infrared spectroscopy

KINO SAIKO, MATSUURA YUJI

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2013/04/01 - 2016/03/31

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A mid-infrared attenuated total reflection (ATR) spectroscopy system employing hollow optical fibers and a trapezoidal multi-reflection ATR prism has been developed to measure blood glucose levels. Using a multi-reflection prism brought about higher sensitivity, and the flat and wide contact surface of the prism resulted in higher measurement reproducibility. An analysis of in vivo measurements of human inner lip mucosa revealed clear signatures of glucose in the difference spectra between ones taken during the fasting state and ones taken after ingestion of glucose solutions. A calibration plot based on the absorption peak at 1155 /cm that originates from the pyranose ring structure of glucose gave measurement errors less than 20%.
経鼻栄養法の経鼻胃管のカテーテルを正しく挿入するための光ガイドシステムの開発

松浦祐司

System: 産学が連携した研究開発成果の展開研究成果展開事業研究成果最適展開支援プログラム(A-STEP) ハイリスク挑戦タイプ復興促進型

Institution: 大洋電子株式会社

2014 -
Feasibility study of multicore fiberoptic sensors for detection of catheter configuration

MATSUURA Yuji, KATAGIRI Takashi, KINO Saiko

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2011 - 2012

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To develop a sensor that monitors configuration of catheter from the outside of human body, feasibility study was performed for sensors based on multicore-fiber with multiple optical cores. This sensor utilized that power coupling between optical waveguides changes by bending of the waveguides. Theoretical evaluations based on optical-power coupling theory and beam propagation method showed that asymmetric waveguides worked as a optical sensor. It was shown that this device detects both of radii and direction of waveguides' bending.
A newly developed optical guide system for safe insertion of nasogastric tube.

MUNAKATA Mitsutoshi, MATSUURA Yuji, UEMATSU Mitsugu

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2010 - 2012

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We have developed an optical guide system which prevents incorrect insertion of a nasogastric feeding catheter into the trachea. Near-infrared light laser diode was connected to a plastic optical fiber, which tip was fabricated to scatter light laterally and the fiber was fit into the catheter. The catheter was inserted into the stomach and transmitted light through the abdominal wall was successfully observed with a cooled CCD camera. This optical guide system has a potential for safe insertion of a nasogastric feeding catheter.
Development of high-sensitivity and ultra-low volume infrared gasspectroscopy system for breath analysis

MATSUURA Yuji, KATAGIRI Takashi, KINO Saiko

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2010 - 2012

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To detect minor components in breath, a spectroscopic measurement system using a quantum cascade laser and a hollow optical fiber was developed. By optimizing the optic system and signal processing method, quantitative measurement of ppm-order gas component was successfully demonstrated. Subsequently, to devlop a cavity-ring-down spectroscopy system having further high sensitivity, hollow optical waveguides with inner dielectric layers were fabricated. By forming multiple dielectric layers on the inside, the transmission losses are largely decreased compared to common hollow waveguides with a single dielectric layer.
Optical diagnosis method for dental pulp viability based on the blood oxygen saturation using short wavelength LED

KAKINO Satoko, MATSUURA Yuji, OHUCHI Katsuhiro, MIWA Zenzo, KUSHIBIKI Shinya, SUNADA Takahiro

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Young Scientists (B)

Institution: Tokyo Medical and Dental University

2009 - 2011

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Assessment for the dental pulp vitality is a crucial diagnostic procedure for the dental treatment. As the vascular supply is the most accurate determinant for assessing pulp vitality, we have developed the Transmitted-light Plethysmography(TLP) system with 525nm LED to detect microcirculatory changes in the pulp tissues. In this study, we focused on the pulpal blood oxygen levels(SO_2) as additional information for pulp viability in relation to pulpal inflammation, and attempted to establish the basic theory by in vitro study. The oxygenated and deoxygenated human blood was circulated through the extracted human upper incisors to simulate the tooth plethysmogram. For computation of SO_2, the amplitudes of pulse waves(V_<p-p>) and transmitted light intensity(V_t) were measured using three LEDs with peak emission wavelength at 470nm, 525nm and 590nm. Results indicated ratio ofφ(ln(V_<p-p>/V_t)) computed by 470 and 590nm, 525 and 590nm showed linear relationship with actual SO_2.
Vasa Vasorumの可視化を目的とした光音響顕微鏡の開発

西條芳文, 松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 挑戦的萌芽研究

Institution: 東北大学

2009 - 2010

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冠動脈の動脈硬化プラークの進展及び破綻に密接に関係するVasa vasorumの臨床的評価方法として、血管内超音波法(IVUS)と同様のシステムで、光と音のハイブリッドにより血管内から外膜側の細動脈を特異的に可視化する血管内光音響イメージングが有効と考えられる。本研究では、ナノ秒パルスレーザーの照射により発生する超音波を受信し、プローブを機械的走査することで反射の三次元分布を可視化する光音響顕微鏡装置を試作することで、1.直径50μmの細動脈が可視化できる解像度が得られること、2.使用するレーザー光の波長により血管や動脈硬化組織に特異的なイメージングが可能であることの2点を明らかにすることを研究目的とした。平成22年度には、光ファイバーによりレーザー光を集光するという新たなアーキテクチャーにより光音響信号の三次元分布を計測し、分解能50μmについて確認した。さらに、10色のファントムを作成し、532nmのYAG:Ndレーザー光照射により特に赤色ファン等からの光音響信号が強いという分光性について確認した。
High-durability and performance distal hollow fiber tips for Er:YAG medical laser

MIYAGI Mitunobu, IWAI Katsumasa, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Sendai National College of Technology

2008 - 2010

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The application of the medical infrared laser with a wavelength of 2 μm and over is expanding in almost all the sub fields in medicine. In many medical applications, there is a critical requirement for high-durability and performance distal hollow fiber tips. We report on the fabrication of high-durability and performance distal hollow fiber tips for Er:YAG medical laser.
Enhancement of drug induction into brain parenchyma using shock wave delivery system

TOMINAGA Teiji, IKOHAGI Toshiaki, TAKAYAMA Kazuyoshi, MAKISHI Wataru, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2006 - 2008
Flexible and highly-efficient hollow optical fiber for transmission of 13-nm extreme ultraviolet light and 0.15nm soft X ray

MATSUURA Yuji, IWAI Katsumasa

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2006 - 2008
Development of a new pulse oximeter for the dental pulp blood by using the absorbance difference between blue and violet LEDs

MIWA Zenzo, TAKAGI Yuzo, IKAWA Motohide, MATSUURA Yuji, TAKATANI Setsuo, OHUCHI Katsuhiro, KAKINO Satoko, OHUCHI Katsuhiro, KAKINO Satoko, KIRIMOTO Akiko, YOHOYAMA Eriko, OHTA Aoi, WATANABE Tomoki

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tokyo Medical and Dental University

2006 - 2008
2波長レーザ照射が可能な内視鏡治療装置の開発

松浦祐司

System: 産学が連携した研究開発成果の展開研究成果展開事業地域事業地域イノベーション創出総合支援事業シーズ発掘試験

Institution: 東北大学

2007 - 2007

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単一の波長のみで切開のみに使用されてきたのレーザ手術において、組織の切開に有効な波長と血液の凝固に有効な波長を合わせて用いることにより、止血をしながら効率的に切開・蒸散が可能なレーザ治療システムを開発することを目的とする。具体的には、各種の生体組織に応じた最適レーザ照射条件の探索、複数レーザ照射が可能な内視鏡レーザ装置の試作を行なう。
Construction of high reliability and ultra-thin medical laser endoscope

MIYAGI Mitsunobu, SAITO Seichi, IWAI Katsumasa, MATSUURA Yuji, BABA Kazutaka

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Sendai National College of Technology

2005 - 2007

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A dielectric-coated metallic hollow fiber is one of the commonly used infrared fibers in medical field nowadays. We developed a flexible hollow fiber for multi-wavelength medical laser treatment in endoscope. 1. Development of a hollow fiber for multi-wavelength laser light transmission In the fabrication of the cyclic olefin polymer (COP) coated silver (COP/Ag) hollow glass optical fiber, a liquid-phase coating method is normally used for the COP layer. The uniformity of the COP layer is one of the most important factors to obtain hollow fibers with high-performance. Low-loss properties have been attained in several key wavelength bands in the visible or infrared region for medical laser transmission. We proposed a closed loop-flowing method in order to coat a uniform COP layer. The method was successfully applied to the fabrication of hollow fiber. 2. Development of a ultra-flexible hollow fiber with biocompatibility and high reliability We developed hollow fibers with polycarbonate (PC) capillaries for use as a supporting tube. By adjusting the drawing temperature in the fabrication of the PC capillaries, we obtained uniform PC capillaries with a smooth inner surface. We attained low loss properties for Er: YAG laser light transmission. 3. Development of micro output devices with a high performance In order to change the output direction and focal distance of laser light in a small operation space, we developed glass sealing hollow fibers. We showed that the distal tips functioning as focusing optics when the shapes of sealed end surfaces are properly fabricated. 4. Construction and evaluation of a laser catheter Er : YAG laser light and green pilot beam were simultaneously delivered through the endoscope with small losses even when it was sharply bent with a bending radius as small as 1 centimeter. Er : YAG laser light was delivered to reach a model calculus by using a hollow fiber and fragmentation efficiency were evaluated.
細径内視鏡を用いた赤外リモート分光システム

松浦祐司

System: 産学が連携した研究開発成果の展開研究成果展開事業地域事業地域イノベーション創出総合支援事業シーズ発掘試験

Institution: 東北大学

2006 - 2006

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本試験では、早期腫瘍などを細径内視鏡を用いて診断可能なリモート赤外分光システムの開発を目的とする.具体的には、広域赤外光伝送用中空光ファイバの開発、細径内視鏡用赤外分光プローブの作製と評価を行い、細径内視鏡,中空光ファイバ,フーリエ分光器の組み合わせによる内視鏡下赤外分光診断システムを構築する。
多機能・低侵襲レーザー医療用総合光伝送システム

石芸尉, 宮城光信, 松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東北大学

2005 - 2006

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1.中空ファイバ内装膜の特性に関する研究中赤外レーザー用中空ファイバに対して,可視域の損失を低減するために,銀膜とポリマー膜表面の平滑化及びポリマー膜の均一性を向上させる方法について詳しく検討した.銀膜の平滑に関して,SnCl_2溶液による洗浄でガラス表面の活性化によって改善した.ポリマー膜の表面粗さを低減する方法は,特殊有機溶媒の雰囲気中で成膜する方法と循環送液法で均一的なポリマーを成膜させた. 2.多波長レーザー光用中空ファイバの伝送特性に関する研究中空ファイバ製作の前処理,特殊雰囲気中の成膜と循環送液法などの工夫により,短波長帯における損失は大幅に低減することができた.短波長の損失低減により可視・近赤外・中赤外のレーザー光の多波長同時伝送が可能になり,各種レーザーに対応する照明・指示・止血・蒸散・切開など同時に実現することが可能になった.医療用レーザー装置の開発に高性能伝送システムを構築できた. 3.細径先端デバイスの研究と出射パターンの制御細径先端素子の製作を行い,出射パターン制御の研究を行った.内径100μmの中空ファイバを用い,そのサポート管の石英材質を生かして先端封止を実現した.先端形状の設計と研磨により,外径の極めて細く,レーザー光の出射パターンは制御できる先端ハンドピースを実現した.また,機械強度を得るために,金属の外装あるいはステンレスパイプの装着についても検討を行った.X線に不透明になり,歯根など極めて狭い空間で,X線の画像を観察しながらレーザーを用いて治療を行うことが可能になった.
高機能低侵襲レーザバイポーラー

宮城光信, 齋藤誠一, 石芸尉, 松浦祐司, 岩井克全

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 萌芽研究

2004 - 2005

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従来の電気メスのバイポーラーは、体内に煙が充満したり、広範囲の血管組織を壊死させてしまう問題があった。中空ファイバは、内部から手術中の煙の吸引・排出が可能、赤外伝送路と可視光も伝送可能なことが分り、一部実用化されている。また異なる波長のレーザ光を一本のファイバで同時伝送することが考えられる。本研究は血管の止血と切断を瞬時に行う、全く新しいタイプのレーザバイポーラーの伝送路及び先端素子を中空ファイバオプティクスで開発し、その製作法を確立することを目的とし、以下の研究を行った。 1.3波長同時伝送可能な有機樹脂内装中空ファイバの製作治療用2波長赤外光とパイロット光(緑)を効率的に伝送する中空ファイバの誘電体膜厚を設計し、その膜厚0.3μmを精密に成膜する手法について検討を行った。内径700μm、長さ2mで均一な膜厚を有する3波長同時伝送可能な中空ファイバを実現した。 2.3波長用入射光学系の設計と評価 3波長伝送中空ファイバに、切断機能レーザ光(波長約3μm)、止血機能レーザ光(波長約2μm)及び外部から緑色パイロット光(波長532nm)を効率的に入射させるため、入射系にテーパ型中空入射結合器を用いることを検討し、その設計を行った。 3.中空ファイバオプティクスによる高機能先端素子の設計・製作 3波長帯の吸収が比較的小さく、無毒、高エネルギー出射に適した石英を材質に用い、低損失かつ集光・拡散・側方照射効果を有する先端形状について設計を行った。各種形状の先端素子の製作を行い、その出射特性を明らかにした。 4.レーザバイポーラー用中空ファイバ伝送システムの構築と評価内視鏡を用い、製作したファイバの屈曲性ならびに可能性について調査した。低損失化が要求される切断機能レーザ光(波長約3μm)の曲げ負荷特性を実験的に検討し、実用的な使用に耐えうるファイバを実現した。
Hollow waveguides for extreme ultraviolet light and soft X ray

MATSUURA Yuji, SHI Yi-Wei, IWAI Katsumasa

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2004 - 2005

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The purpose of this project is to develop flexible and highly-effective waveguides for vacuum ultraviolet light and soft x ray. We propose hollow optical waveguides with vacuum hollow core which is almost highly transparent in vacuum ultraviolet and soft x ray regions. 1. Loss reduction of hollow aluminum fibers for vacuum ultraviolet light In fabrication process for deposition of aluminum thin film on the inside of glass capillary tubing by using MOCVD process, the conditions for deposition pretreatment were optimized. As a result, hollow waveguides with low transmission losses are fabricated because of smoothness of inner aluminum film which induces little scattering losses. 2. Development of remote spectroscopy system in vacuum ultraviolet A remote spectroscopy system for ultraviolet wavelength region was developed by using a flexible hollow fibers with aluminum inner coating. Monochromated light is delivered by a hollow fiber to the target and reflected light is collected and transmitted back to photomultiplier. A bundled hollow fiber is also used for delivery media. 3. Hollow optical fiber with one-dimensional photonic bandgap structure A hollow fiber with multilayered cladding which confine light by using the photonic bandgap of the cladding were proposed. From analysis of transmitted modes in the fiber, the optimized multilayer structure was designed. Fabrication process using a mandrel which is removed after deposition of multilayer on the outside was also proposed. 4. Development of soft x-ray waveguide A collimating optics for soft x ray was fabricated by using a bundled hollow optical fibers. Hollow fibers with inner nickel layer which provides high reflection in soft x-ray region were fabricated and the transmission characteristics were compared with those of glass capillary optics.
最小侵襲レーザ医療用中空ファイバ・先端装置の国際標準化

宮城光信, 松浦祐司, 石芸尉, 齋藤誠一, 庄司茂, 清水孝一

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東北大学

2004 - 2004

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本研究では,中空ファイバを用いる新しいレーザ治療装置の概念を,国際的な視点に立って構築し,併せてその標準化を構築することにある.この目的を達するために各国の研究者と共同で,Er:YAGレーザ,炭酸ガスレーザ,高出力Nd:YAGレーザ,アレキサンドライトレーザ,エキシマーレーザなど,可能な限り多種類の医療用レーザ装置に対応可能な,中空型の入射結合系,導波系,出射先端デバイスの実現とその標準化の調査・研究を行った.以下に整理して示す. 1.パイロット光伝送可能中赤外用中空ファイバの標準化歯科治療用のCO2レーザシステムに採用されている赤外中空ファイバの材料(石英),内径,外径の標準化を,各国の研究者と共同して推し進めた. 2.接続コネクターの標準化中空ファイバ同士,あるいは中空ファイバと先端素子の接続を容易にする,コネクターを開発し,その標準化の準備を行った. 3.各種医療レーザ装置用の先端デバイスの開発とその標準化従来のリーマーに代わるEr:YAG歯科根管治療用細径中空ファイバと,それに装着するキャップ型先端装置の標準化,ならびに尿路結石破砕用先端装置についての検討も行った. 4.国際会議の開催に向けての準備新デリバリーシステムを用いた治療装置について各国でのデータを持ちより,伝送システムの国際基準をつくる.また,レーザ医療装置に関する国際会議を開催すべく,その準備ならびに企画を行った. 以上の4課題を通し,中空ファイバに基礎を置く,医療用トータル中空デリバリーシステムとその臨床応用の調査を,国際的な共同研究の形態をとりながら遂行した.
Output device with high performance for Er:YAG laser light delivery

SHI Yi-wei, MIYAGI Mitsunobu, MATSUURA Yuji, IWAI Katsumasa

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2003 - 2004

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(1)Hollow optical fiber has found wide applications in industrial and medical fields. A cyclic olefin polymer-coated silver (COP/Ag) hollow optical fiber is one of the most competent candidates for medical applications because of the properties of low transmission loss, non-toxicity, little aging effect and low cost. For infrared laser light delivery in hollow fiber, a pilot beam is often required to avoid laser hazard. We have improved the fabrication techniques to reduce the surface roughness of silver and polymer layers. Low loss has been obtained for the hollow fiber in visible and near-infrared regions as well as in middle infrared region. Pilot beam and multiwavelength infrared laser beams were delivered with low loss simultaneously. (2)An Er:YAG laser light delivery system composed of a polymer-coated silver hollow waveguide and a quartz sealing cap has been developed for calculus fragmentation. Sealing caps with various distal-end geometries were fabricated, and the focusing effects of these caps for Er:YAG laser light were measured both in air and in water. Owing to the high power capability of the quartz sealing caps, a beam of Er:YAG laser light with an output energy of 200 mJ and a repetition rate of 10 Hz was successfully transmitted in saline solution by using the system. Calculus fragmentation experiments conducted in vitro showed that the delivery system is suitable for medical applications in lithotripsy. We also found that the cap with a focusing effect is more effective in cutting calculi. The deterioration of the sealing caps after the calculus fragmentation is also discussed. We have experimentally quantified calculus fragmentation by Er:YAG laser light. Er:YAG laser light was delivered to an underwater target through a sealed hollow optical fiber. Fragmentation efficiency was obtained for an alumina ball used as a calculus model when sealing caps with various focusing effects were used. Three types of human calculi were analyzed and their absorption properties at the wavelength of Er:YAG laser light were obtained. The relationships among the absorption properties, calculus constituents, and fragmentation efficiency are discussed. (3)A sealing cap had been proposed as an output device for hollow optical fibers in delivering laser light underwater. Properties of sealing cap were experimentally discussed when used in ablation on soft tissue for Er:YAG laser. A self-cleaning effect of the sealing cap was observed when various targets were used for different laser light power. Debris from pork fat formed a uniform oil layer on the output surface of the cap, and the oil layer is relatively transparent in Er:YAG laser light wavelength band. When the target was pork muscle, almost no debris could attach on the surface of the cap. The self-cleaning effect was more obvious when ablation was conducted underwater because of the protection of the water film between the target and the cap's surface.
Optical delivery system of ultrashort and ultrahigh-energy pulses for biomedicall optics using near infrared light

MIYAGI Mitsunobu, MATSUURA Yuji, SHI Yi-wei, SATO Shunichi, IWAI Katsumasa

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2002 - 2004

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The purpose of this research is to develop a flexible delivery system for femto-pulse lasers and high-powered Nd : YAG lasers oscillated in near infrared wavelengths by using a dielectric-coated, hollow metallic optical fiber. Since ultrashort and ultrahigh-energy pulses enable highly efficient ablation of human tissues, the delivery system is necessary for safety and painless medical treatment. The following results were obtained in this research : 1.Fabrication of silver-coated hollow fibers with highly-smooth surface and high mechanical intensity 2.Study on mechanism of formation of dielectric polymer film and development of coating method 3.Smoothening of inner surface of silver-coated hollow fibers 4.Fabrication and evaluation of hollow optical fibers for GW-class Nd : YAG lasers 5.Loss reduction of polymer-coated hollow optical fibers 6.Evaluation of hollow fibers for Q-switched Nd : YAG lasers and improvement of durability for high power pulses
多機能を可能とする超細径レーザ医療中空ファイバの研究

宮城光信, 石芸尉, 松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 萌芽研究

Institution: 東北大学

2002 - 2003

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中空ファイバは,当初,波長が2μm以上の赤外光を伝送する目的で考案された.内部が中空であるため,手術中の煙の吸引・排出が可能なこと,波長が10倍以上もことなるパイロット光も伝送可能なことが分かり,一部実現してきた.中空ファイバを改良することにより,医療用途において有用な超音波およびマイクロ波をも伝送可能な超多機能性中空ファイバを実現することを目的とする. その方法として,保護層付き石英キャピラリーチューブの外部に金属層を設け,内面に銀層と有機樹脂が内装することにより,赤外光,超音波,およびマイクロ波のすべてを同時伝送可能なシステム構築をめざし,その可能性について検討した. 本研究では本年度において,以下の研究を行なった. 1.中空ファイバによるレーザ照射部の温度計測 CO2レーザで照射された組織の温度を,同じ中空ファイバに照射部の放射光を出射端に導き,強度を分析することにより計測した.計測に最適となるファイバの伝送損失スペクトルについて理論的検討を行うともに,中空ファイバ,放射温度計,および各種光学素子で構成される温度計測システムの試作・評価を行った. 2.超細径中空ファイバによる超音波伝送中空ファイバは弾性波を伝送できる構造になっている.即ち,治療のための超音波をも患部に導くことが出来ることを意味する.超音波の透過率の中空ファイバ内径依存性について,理論的・実験的な調査を行なった. 3.中空ファイバによるテラヘルツ波伝送テラヘルツ領域で透明である各種の樹脂を用いて中空ファイバを構成し,テラヘルツ波の伝送を試みた.伝送損失のほか,波長特性等について基礎的検討を行った.
157nmエキシマレーザ用中空ファイバ伝送システムの研究

松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 若手研究(B)

Institution: 東北大学

2001 - 2002

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本研究の目的は,申請者らが開発したアルミニウム中空ファイバを用いて157nm-F_2エキシマレーザ光を効率良く伝送するシステムを実現することである.製作条件などを実験的に検討することにより表面粗さを低減して,より低損失な中空ファイバの実現を目指した.また,現状では内径0.7mmのファイバが最小となっているが,0.5mm以下の内径をもつファイバは,曲げによる損失変動が小さいことが期待されるため,細径ファイバ製作のための検討も行った.主な成果は以下のとおりである. 1.中空テーパ型入射結合器の製作と評価中空テーパ型結合器を,パイレクスガラスチューブを延伸したテーパ型チューブの内面に,アルミニウム薄膜を形成するという手法で製作し,その特性について評価を行った.その結果,中空ファイバへ光を入射させる際のファイバ端面の損傷を抑えることが可能となった. 2.伝送システムの構築と総合評価中空ファイバに保護用ジャケットを装着し,ガス導入機構や,テーパ型入射結合器と組み合わせて一体化した伝送システムを構築した.エキシマレーザを用いてこの伝送装置の評価を行ったところ,ジャケット装着時のストレスによりファイバに微小曲がりが発生し,損失の増加をもたらすことがあり,ジャケットおよびファイバ母材の構成について再検討を行った. 3.ビームホモジナイザの設計および製作ファイバ曲げによるビーム形状変動を抑制するためのホモジナイザの設計を行うとともに,矩形ガラスパイプを用いて製作を行った.本ホモジナイザは矩形断面をもつ中空導波路で構成されたカレイドスコープ型のものであり.光線追跡方により,高効率かつ効果的となる最適形状を設計し,実際に製作・評価を行い,その優れたビーム均一化特性を明らかにした.
Multifunctional laser-delivery system for all types of medical lasers

MIYAGI Mitsunobu, SHI Yi-Wei, SHOUJI Shigeru, MATSUURA Yuji, HONGO Akihito, SAITO Seiichi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2001 - 2002

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We investigated hollow fibers and delivery system for medical applications. The system is applicable to all of CO2 lasers, CO lasers, Er:YAG lasers and Nd:YAG lasers having different ablation properties for human body. The fibers are so thin that they have high flexibility. Various output devices for hollow fibers are investigated for variety of medical uses. For dentistry, the devices are improved to make them highly functional. Output devices for urology are also designed and developed. The following results were obtained in this research: (1) Development of output devices based on hollow waveguides For medical applications of hollow fibers, the output end should be sealed to keep moisture and ablated debris from the inside of the fibers. We developed some sealing techniques for hollow fibers. An easy and low-cost technique is to seal the end with a polymer film, By dipping the end to polymer solution and dry it to form a sealing film. For higher energy threshold, glass caps made of Pyrex and silica glass are developed. By changing the shape of the sealed end, the cap show focusing effect to give higher energy density at the focus spot. These sealed devices are applied to the both of dentistry and urological applications. (2) Hollow fibers for CO2, CO, Er:YAG and excimer lasers and development of input and output devices for hollow fibers. Hollow fibers which show low-loss properties for CO2, CO, Er:YAG and excimer lasers were developed. Output devices for the fibers which applicable to variety of medical applications were also developed. A sealing cap made of silica glass was tested in calculus fragmentation experiment and the result showed the high capability of the hollow fiber with the sealed devices.
医療用新レーザデリバリーシステムの国際基準

宮城光信, 清水孝一, 石芸尉, 松浦祐司, 佐藤俊一, 本郷晃史

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東北大学

2001 - 2001

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本研究では,中空ファイバによるレーザ医療を実現するために,国際的なチームを結成し,Er : YAGレーザ,CO2レーザ,アレキサンドライトレーザ等の高出力レーザ伝送に関わる,中空型入射結合系,中空ファイバ導波系,ならびに出射先端デバイスについての研究を行った.得られた研究成果の実績は以下の通りである. 1.Er : YAGレーザ用伝送システムの研究歯科治療用のEr : YAGレーザ伝送系に基礎を置き,これを眼科治療への展開を図るために,先端装置として,ガラスシーリングキャップを考案した.チェコ工科大学ならびにチェコ軍病院での基礎実験により,眼科治療に有望であることが分った.また,ガラスの代わりに,加工は難しいが石英ガラスキャップを用いることにより,その性能も高まることが明らかになった.現在,入射系及び出射系でのハンドピース部分ち含めた,伝送システムを構築し,更なる臨床に向けての基礎実験を行なっている. なお,以上の系においては,内径が0.7mmの中空ファイバを用いる伝送系であるが,腎結石破壊・除去を目的に,内径0.32mmとより細い中空ファイバを用いる伝送システムを,現在構築中である. 2.各種レーザ用伝送システムの調査現在,最も使用頻度の高い関節型伝送システムを中空ファイバで置き換える事によって派生する問題点について整理を行い,医療分野では本質的間題点がないことを明らかにした.また,出射ビームの制御を簡単に行なうことが出来る,幾つかのタイプの出射素子についても考案した. 3.国際会議の企画新デリバリーシステムについての国際会議の企画を当初,独自に計画したが,最終的には,従来から行なわれている国際会議に合流して,各国の認査・結果をもちよった.
Fabrication Techniques and Applications of Metal Manocluster swith Desirable Characteristics

BABA Kazutaka

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

2000 - 2001

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In this work, we have investigated novel optical devices using nanoclusters including (1) patterned ultra-thin optical polarizing films, and (2) multiwavelength optical data storage media, etc. For the patterned ultra-thin optical polarizing films, we have fabricated the polarizing films for the wavelength of 800 nm and have successfully patterned those by the irradiation of high-powered carbon dioxide laser. The patterned polarizing would be useful for optical computing and sensing thechnology. For the multiwavelength optical data storage media, we have demonstrated the metal island films are very interesting optical data storage media for write-once multi-wavelength 3-D optical disks. The basic operation has been experimentally confirmed using aluminum-silver compound metal island films for 490 nm and silver-gold compound metal island films for 810 nm. In addition, we proposed novel waveguide polarizers using artificial birefringent media, including periodic dielectric multilayers, porous dielectric media, and columnar dielectric media.
HIGHLY INTELLOIGENT INPUT/OUTPUT DEVICES IN BIOMEDICAL OPTICS

MIYAGI Mitsunobu, ABE Yukio, SHI Yi-mei, MATSUURA Yuji, SATO Shunichi, SHOJI Shigeru

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

1999 - 2001

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Input/output devices and hollow waveguides are key elements of technology in minimally invasive laser medicine in infrared wavelengths of 0.5 μm - 11 μm. In this project, we develop the highly intelligent input/output devices and reliable hollow waveguides for high energy or high power laser under international collaboration. The results obtained are as follows: 1. Development of infrared hollow fibers transmitting visible light By precise control of the thickness of deposited polymer layer inside a silver hollow tube, we develop hollow fibers which can transmit infrared as well as visible light efficiently. 2. Sealing devices for Er:YAG laser light A glass sealing cap is newly developed for the distal tip of hollow fiber for Er:YAG laser light. The structure is simple and the inner diameter of sealing cap is slightly larger than the outer diameter of hollow fiber. Preliminary experiments conducted show the usefulness of the sealing cap in ophthalmology. A fused silica cap is also fabricated whose transmission efficiency is much higher than the glass cap. A complete delivery system including input coupler, hand piece, and sealed hollow fiber has been constructed. Further experiments have been conducted on lithotripsy. 3. Sealing devices for C02 laser A material of sealing cap should be transparent in infrared as well as visible light. We have newly developed a sealed cap made of NaCl crystal. 3W of CW C02 laser light has been stably transmitted. 4. Devices changing light direction Simple devices have been developed which change the light direction at the output end of hollow fiber.
Delivery of over 100MW-class, Nd : YAG laser pulses using hollow fibers

MATSUURA Yuji, MIYAGI Mitsunobu

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

1999 - 2000

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Application of Q-switched Nd : YAG lasers emitting optical pulse width of 5-10 ns is rapidly expanding its area since the laser equipment has become smaller and cheaper recently. Common silica glass fibers, however, cannot effectively transmit Q-switch pulses with a peak power more than 1 MW because of the damage at the input end and the core induced by radiation of high-energy density pulses and nonlinear effect of silica glass. Therefore, the purpose of our research is to expand the application area of Q-switched Nd : YAG lasers which is currently limited by the above fact. Our final goal is to develop a delivery system based on hollow glass fibers which deliver optical pulses with more than 100 MW of peak power. The following results were obtained in this research : (1) Design and fabrication of polymer-coated hollow fibers by using a liquid-phase fabrication method. To lower scattering losses for visible and near-infrared light, smoothness and uniformity of metal films coated on the inside of hollow fibers are improved. A silver film formed by a conventional mirror plating technique.. It was found that the smoothness and uniformity are greatly improved by keep the reaction temperature at constant by using a newly developed, water cooling system. Fibers fabricated using the new system showed low delivery losses specially for 2nd and 3rd harmonic pulses of Nd : YAG laser light. (2) Development of input couplers and gas-introducing system To suppress air-breakdown induced when radiating high-energy optical pulses, a input coupler which introduce inert gas to a hollow core region of fibers was designed and fabricated. This coupler enables delivery of Nd : YAG laser pulses with more than 10 MW of peak power.
Fabrication of Small-Bore Hollow Fibers for Er:YAG-laser dentistry

MIYAGI Mitsunobu, HARA Hiroaki, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: TOHOKU UNIVERSITY

1998 - 1999

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The purpose of this research is to develop a fabrication method of a hollow fiber with very small bore for dental and ophthalmic uses of Er:YAG lasers. The fiber is fabricated by a method which is based on liquid-phase coating technology. In this research, we have investigated and developed following matters: 1. Development of babrication method of small-bore glass hollow waveguide A thin film of fluorocarbon and cyclic-olefin polymer is successfully coated on the inside of small-bore glass capillary tubing with the inner diameter less than 200 micron. 2. Fabrication and evaluation of small-bore hollow fiber devices We design and fabricated small-bore hollow fiber devices for dental and ophthalmic application. The devices are based stainless-steel and nickel tubing which are rugged so as to withstand medial uses severe environmental situation. 3. Loss reduction of small-bore hollow fibers The losses of hollow fibers with a bore smaller than 500 micron were reduced by improving a facrication method to increase the uniformity of the silver layer. 4. Development of high-performance laser system for Er:YAG laser medical instruments By combining the small-bore fiber and other hollow-fiber optical elements, a medical laser system was assembled. The system uses a small-bore hollow fiber for high flexibility which is necessary in many medical applications.
Study on Novel Optical Devices Using Metal Island Films

BABA Kazutaka, MATSUURA Yuji, MIYAGI Mitsunobu

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (C)

Institution: TOHOKU UNIVERSITY

1998 - 1999

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In this work, we have investigated novel optical devices using metal island films, including (1) ultra-thin optical polarizing films, (2) cube add/drop optical filters, and (3) write-once optical data storage media, etc. For the ultra-thin optical polarizing films, we have successfully fabricated the polarizing films for the wavelength of 800 nm. In addition, we have demonstrated deliberately patterned optical polarizing films, which is useful for optical computing, by the laser-writing technique with a carbon dioxide laser. For the cube add/drop optical filters consisting a metal island multilayer sandwiched between two glass prisms, we have theoretically investigated these optical characteristics. It has been shown that the proposed cube filter has low polarization sensitivity. Finally, for the write-once optical data storage media, we have investigated compound metal island films prepared by using a two-step evaporation method. We have demonstrated durable optical data storage media using silver-gold compound metal island films and write-once data storage media using aluminum-silver compound island films.
Development of high-performance, beam delivery system for minimum-invasive medical treatment using infrared lasers

MIYAGI Mitsunobi, HONGO Akihito, MATSUURA Yuji, BABA Kazutaka, SHI Yu-wei

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: TOHOKU UNIVERSITY

1998 - 1999

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The purpose of this research is to develop a beam delivery system for minimum-invasive medical treatment using infrared lasers. This system is useful for variety of medical applications including surgical operation and laser angioplasty. The system involves all the optical element arranged between the laser source and the diseased target. In this research, we have investigated and developed following matters : 1. Design and fabrication of lensed-taper optical coupler An optical coupler consisting of a lens and a hollow taper waveguide was investigated for efficient coupling between the laser beam and hollow fibers. 2. Fabrication of fixed-bend, hollow optical fiber tip Short hollow-fiber tips were fabricated for handpieces used in medical treatment. The tips are bent in various curvatures to adopt to various applications. 3. Loss reduction of hollow fibers A cyclic olefin polymer was newly employed as the inner dielectric of hollow fibers to reduce the transmission losses. 4. Development of output devices for hollow fibers Some output devices including a sealed hollow-fiber tip were developed for medical applications where the fibers' output end has to be protected from sputtered particles. 5. Development of high-performance laser system By combining the above optical elements, a medical laser system was assembled. The system uses a small-bore hollow fiber for high flexibility which is necessary in many medical applications.
エキシマレーザ用キャピラリ型光ファイバの開発

松浦祐司

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 奨励研究(A)

Institution: 東北大学

1997 - 1998

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紫外域で発振するエキシマレーザは、その高エネルギー密度の短波長光を応用した各種のシステムが開発され注目を集めている。工業分野では、半導体産業におけるリソグラフィー応用、金属の表面改質、また医療分野ではレーザ光による近視治療が世界的に進められており、その注目度は世界的にも非常に高い。しかしこのエキシマレーザがもつ大きな欠点は、レーザ光の波長が200nmと非常に短いため、石英のレーリー散乱が問題となり、通常の光ファイバを利用できないことである。そこで本研究は、今後発展するエキシマレーザ応用システムに必要不可欠である、低損失な光ファイバを提供することを目的とする。本年度はMOCVD法によって製作した中空ファイバの基本特性を評価するとともに、その特性改善のための製作条件の最適化にいて検討した。その結果,塩化チタニウムによる前処理工程のガス流量・処理時間や、アルミニウム成膜時の温度・ヒータ移動速度などの細かい製作条件を最適化することにより、アルミニウム表面をより平滑化することに成功した。また、伝送路として実用化レベルの特性が得られるように、レーザ光入射条件の最適化や出射光学系などについて検討した。その際、ArFレーザ伝送時には、中空ファイバのコア中の酸素がオゾン化されて伝送損失が上昇してしまうために、コア中に不活性ガスや窒素などを流入させる必要があることがわかり、そのためのガス導入機構を開発し、中空ファイバによるエキシマレーザ伝送システムの構築を行った。
Highly efficient and intelligent infrared delivery system

MIYAGI Mitsunobu, ABE Yukio, CHO Shuken, SATO Shunichi, MATSUURA Yuji, SHI Yi-Wei

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for international Scientific Research

Institution: Tohoku University

1997 - 1998

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The purpose of this project is to realize highly efficient and intelligent delivery system for the infrared light with high energy or high power. Main results of this project are as follows : 1. International conference to promote biomedical optics 4 international meetings were held with collaborators in this project in BiOS Europe '97, BiOS '98, BiOS Europe '98 and BiOS '99 fibers. The continuous progress in the area of infrared delivery system in the biophotonics have been made. 2. Measurements of optical constants of polymers in the infrared A method of simultaneous measurements of the refractive index and extinction coefficient of thin polymer has been developed in the visible, near-infrared, and infrared wavelength regions. Based on this method, optical characteristics of many engineering plastics have been clarified. 3. Loss reduction of polymer-coated hollow waveguides It is firstly clarified that the solvent of polymer, concentration of polymer solution, and the coating speed are the key factors to reduce the waveguide losses. 2 m-long waveguides with inner diameters of 0.54-1.0 mm have been successfully fabricated. 4. Fabrication of lensed taper coupler Lnsed taper couplers have been proposed and fabricated to increase the alignment tolerance and loss reduction of them has been made. 5. Fabrication of hollow waveguides transmitting multiple infrared light By choosing the thickness of polymer layer to be coated inside hollow silver tube, multiple infared light as well as aiming light of red or green color has been successfully transmitted with small losses. 6. Sealing of hollow waveguides A simple technique has been proposed to seal the ends of hollow waveguides. It is clarified that there exits an optimum thickness of sealing film to maximize the power capability of hollow waveguides without any damage of the sealing.
Optical delivery system for painless laser dentistry

MIYAGI Mitsunobu, HONGO Akihito, KATO Yuji, HARA Hiroaki, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

1995 - 1997

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The purpose of this research is development of optical delivery systems for dentistry which enables painless dental treatment. The system utilizes Er : YAG laser as the light source and hollow waveguides as the beam delivery medium. In this research, in addition to flexible waveguides, fixedbent waveguides, visible light delivery systems, and beam launching couplers are studied for development of total laser systems. The hollow waveguides that is the basis of this research deliver high-powered, infrared laser light and the waveguides are robust and stable for long term. The following is the main result of this research : 1.Loss reduction of hollow glass waveguides for Er : YAG laser light Hollow glass waveguides are fabricated by a liquid-phase deposition technique using mirror plating method and polymer liquid coating method. The waveguides consist of a silica capillary tube, a silver layr on the inside of the tube, and a polyimide thin film on the further inside of the silver layr. The waveguides withstand more tna 100mJ of input energy and also has a low transmission loss less than 0.3dB/m. 2.Development of additional devices fro hollow wveguides A lensed-taper, launching coupler for hollow waveguides is newly proposed and developed. The coupler enhance the coupling between the input laser beam and the hollow waveguides. In addition, a beam homogenizer for hollow waveguides is develped by utilizing a silver-halide, infrared fiber. 3.Biological test of the beam delivery system for Er : YAG laser Under the corroboration with a manufacturer of dental systems, biological tests using a polyimidecoated, hollow glass waveguide were performed and obtained a good result of painless treatment.
OPTICAL PROPERTIES OF NANO-CLUSTERS AND THEIR APPLICATIONS

BABA Kazutaka, MATSUURA Yuji, MIYAGI Mitsunobu, HAGLUND R.F JR

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for international Scientific Research

Institution: TOHOKU UNIVERSITY

1996 - 1996

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We have invertigated metal nano-clusters for useful potical devices We have successfull confirmed 3rd order large optical nonlineality in gold island films. In the stretched silver island films composed of elongated nano-clusters with large optical anisotropy, nisotropical optical nonlineality has been also confirmed In addition, we have realized ultra-thin size optical polarizers using stretched multilayas of gold and silver island films and CD-compatible write-once optical data storage media using silver island films. The polarizers have the device thickness of 200 nm, the extinction ratio of 20 dB,and the insertion loss od I dB at the wavelength of 1500 nm. The write-once optical data storage media have high reflectance of 70% and large reflectance change greater than 50% in the wavelength region of 600-800 nm. And we have demonstorated ferromagnetic particle composite polymer films forglass and semiconductor substrater for the first time. In nickel, iron, and YIG particle composite polymer films, the large Faraday effect is observed
Highly Intelligent Delivery System in Biomedical Optics

MIYAGI Mitsunobu, SU D, CROITORU N, HARA Hiroaki, MATSUURA Yuji, BABA Kazutaka, BAKER H.J, HALL D.R, HARRINGTON J.A, KATZIR A

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for international Scientific Research

Institution: Tohoku University

1995 - 1996

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There has been increasing interest in minimal invasive medicine that is a new type of treatment and diagnosis technique making no large damage or pain to human body. Biomedical optics is a main research area of the minimal invasive medicine and various lasers have been developed for medical applications. For high performance of the medical laser system, an efficient beam delivery equipment is necessary. A purpose of this project is to develop a highly efficient, laser delivery system equipped with a hollow waveguide as a flexible delivery medium. Main results achieved this term are as follows : 1) Held international conferences on biomedical optics BiOS Europe '96 : September '96 (Vienna, Austria) BiOS '97 : February '97 (San Jose, USA) GCL/HPL '96 : August '96 (Edinburgh, UK) 2) Development of extremely-low-loss hollow fiber and efficient fabrication process Hollow waveguides with multiple dielectric layrs were fabricated to obtain an extremely low-loss hollow fibers. Basic experiments to choose an appropriate dielectric material was performed and the result showed that polymers, such as polyimide and fluorocarbon, and inorganic materials, for example, zinc sulfide, germanium, silver iodide, were chosen as suitable materials for low-loss hollow fibers. As for development of highly efficient fabrication process, we developed an all liquid-phase deposition method. In this method, coating of dielectric as well as metal layr is performed by using a liquid-flow-and-dry method. For this method, we also found that polymer films are appropriate dielectric material. 3) Development of optical attachment for hollow waveguides Optical attachments for a high-performance, laser delivery system were developed. For input end of hollow waveguides, we proposed a lensed-taper launching coupler for high efficient coupling between incident laser beam and hollow waveguides. This coupler also prevent a guide's end from a damage due to miscoupling. For output end, we developed a fixed-bent, hollow fiber piece and a beam homogenizer for easy handling of total delivery system.
STUDIES ON LASER TRANSMISSION DEVICES FOR MINIMALLY INVASIVE MEDICINE

MIYAGI Mitsunobu, KATO Yuji, HORIGUCHI Tsuyoshi, ONODERA Shinji, MATSUURA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: TOHOKU UNIVERSITY

1994 - 1996

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We have investigated transmission devices of infrared laser light for minimally invasive medicine. The results obtained under the project are summarized as follows : 1.Development of zinc sulfide-coated silver hollow nickel waveguide Based on sputtering, electroplating, and etching techniques, we have successfully fabricated zinc sulfide-coated silver hollow nickel waveguides with small losses. THe waveguides are durable and can transmit Er : YAG laser light with the energy of 1.6 J,which suggests the necessity of developing an efficient fabrication method of dielectric-coated hollow waveguides. 2.Fabrication method of polymer-coated silver hollow waveguides In order to fabricate long hollow waveguides efficiently, a new fabrication method based on all liquid phase method has been developed and polyimide or fluorocarbon polymer-coated silver hollow glass waveguides have been obtained for practical dental applications. 3.Proposal of "Total Delivery System" and design of optical elements A new idea of total delivery system has been introduced which uses hollow waveguides and several optical devices such as input launching coupler and and output optical elements are fabricated. The input launching coupler is consisting of a lens and tapered hollow waveguides which has large tolerance in optical misalignment of input beam.
Development of ultra-low loss glass hollow waveguides transmitting infrared light with several wavelengths simultaneously

MIYAGI Mitsunobu, HONGO Akihito, ONODERA Shinji, KATO Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Developmental Scientific Research (B)

Institution: TOHOKU UNIVERSITY

1992 - 1994

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In this research project, we tried to realize infrared glass hollow waveguides with ultra-low losses which can transmit the laser light such as Er : YAG,CO,and CO_2 laser light with several wavelengths simultaneously or independently for medical applications. The main results obtained during the research period are as follows : 1.Fabrication of ZnS-coated Ag hollow waveguides by outer deposition technique In order to fabricate dielectric-coated waveguides with a completely circular cross section along the propagation axis, we employed a new mandrel for the outer deposition method. By using a polyimide-coated glass pipe as a mandrel, ZuS-coated Ag hollow waveguides have been fabricated and the maximum energy of 1.6 J of Er : YAG laser light has been successfully transmitted without siginificant degradation of waveguides. This shows that ZuS-coated Ag waveguide can be used for high-energy transmission media and for dental application. 2.Fabrication of polymer-coated Ag hollow glass waveguides by liquid phase method After depositing a this silver layr inside a fused silica tube with an ultra-smooth inner surface by using a silver mirror reaction method, polyimide or fluorocarbon polymer has been deposited by using a liquid flow coating method or dipping method. Thin hollow waveguides with inner diameters of 700 mum and 540 mum have been fabricated for transmitting Er : YAG laser light with small losses. 3.Studies on mode structures of hollow waveguides Based on the exact characteristic equation, mode structures and mode transitions of circular hollow waveguides with and without inner dielectric layr have been fully clarified. Properties of lower order modes in a uniformly bent circular hollow waveguide are also made clear.
Evaluation and Highly Technological Uses of Infrared Guides

MIYAGI Mitsunobu, HONGO Akihito, MASUURA Yuji, HARRINGTON James A.

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for international Scientific Research

Institution: Tohoku University

1991 - 1992

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In order to evaluate and to develop infrared hollow waveguides for power delivery as well as sensor applications, the joint research has been made between the research groups of Professor Harrington of Rutgers University and M. Miyagi of Tohoku University. The results made are as follows : 1. Loss reduction of dielectric-coated metallic waveguides As a coating inner dielectric, we have employed ZnS which id durable and nontoxic and fabricated ZnS-coated Ag waveguides with very small losses. The waveguides have been also designed so as to transmit CO and Er : YAG laser light. The roughness of inner surface is found to be a very important factor to realize extremely small losses and good beam quality. Therefore, we have employed a glass tube as a mandrel. 2. Mounting technique of dielectric-coated metallic waveguides In order to transmit KW-order carbon dioxide laser light, a cooling system for the waveguides are designed and 3 KW laser light was transmitted through a 4m long waveguide for the first time. 3. Study on sapphire hollow waveguide As a total internal reflection-type waveguide, sapphire hollow waveguides with small core diameter have been fabricated by the EFG method. It id found that the inner surface roughness causes significantly loss increase than theoretically expected. 4. Application of hollow waveguides The dielectric-coated metallic and sapphire hollow waveguides have been successively applied to infrared radiometry and gas detection. 5. Holding of international symposium The international symposium was held by Professors A. Katzir, J. A. Harrington, and myself in Boston, from September 5 to 6 in 1992 supported by SPIE.
Ultra-Low Loss Hollow Waveguides for 5-kW Class Laser Light

MIYAGI Mitsunobu, MATSUURA Yuji, HARA Hiraaki, SAITO Mitsunori

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for General Scientific Research (A)

Institution: Tohoku Univ.

1990 - 1992

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To realize delivery of high-power laser light in an infrared region,we have studied a dielectric-coated hollow waveguide. Loss reduction of the waveguide as well as improvement of output-beam quality is our main purpose. The result of this year's research is as follows. (1)CO_2,CO,and Er:YAG laser delivery by ZnS-coated Ag waveguides We have newly adopted ZnS as a coating material for the dielectric-coated waveguide. ZnS has advantages that are the low refractive index,high durability,and non-toxicity. Fabricated ZnS-coated waveguide showed the low-loss,which is 0.25 dB/m(1 mm-bore waveguide) for the CO_2 laser light. Furthermore,it was shown that the durability of the ZnS-coated Ag waveguide is excellent. We also examined the performance for CO and Er:YAG laser. As a result,the waveguide has a good property for the both lasers. Especially for the Er:YAG laser,the waveguide endured delivering the high laser power, the pulse energy of 800 mJ and the repetition rate of 10 pps. (2)Improvement of the mandrel for fabrication of the waveguide It is desirable that the mandrel used in the fabrication process of the waveguide has no irregularity in its shape or surface. We have newly used the Al tube coated with a polyimide film as a mandrel to satisfy the condition. The waveguide fabricated using the new mandrel showed a lower-loss and a better beam quality. Furthermore,we are investigation the glass mandrel tube as an ideal one.

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Social Activities 7

口にくわえて血糖値測定東北大松浦教授ら開発

2016/03/24 -
採血せず血糖値測定東北大が遠赤外線仕様唇の内側粘膜に照射

2016/02/03 -
角田高校での出張講義

2009/10 -

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角田高校での出張講義
新潟国際情報高校を対象とした出張講義

2009/07 -

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新潟国際情報高校を対象とした出張講義
弘前高校での出張講義

2008/11 -

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弘前高校での出張講義
秋田高校での出張講義

2008/05 -

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秋田高校での出張講義
産学連携セミナー「寺子屋せんだい」

2007/11 -

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講演

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Media Coverage 6

別冊アサ（秘）ジャーナル

TBSテレビ

2014/12/22

Type: TV or radio program

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東北大学 / 金のたまごを取材せよ！
赤外線を当てがん即座発見－光ファイバー開発

東京新聞

2008/03/25

Type: Newspaper, magazine
Tapered Waveguide Answers Perplexing Question

Photonic Spectra

2007/05/01

Type: Newspaper, magazine
内視鏡治療用レーザー東北大，出力１／５で効果

日刊工業新聞

2007/01/25

Type: Newspaper, magazine
レーザーメス切れ味と低出力両立

河北新報

2007/01/18

Type: Newspaper, magazine
内視鏡レーザー治療装置１／２に小型化

日経産業新聞

2007/01/16

Type: Newspaper, magazine

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Other 11

経鼻栄養法の経鼻胃管のカテーテルを正しく挿入するための光ガイドシステムの開発

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経鼻栄養法の経鼻胃管のカテーテルを正しく挿入するための光ガイドシステムの開発
透明圧電素子の応用による革新的光音響顕微鏡の開発

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高効率光ファイバーの開発と内視鏡プローブ用光学系の開発
導波路型キャビティーガスセルを用いた赤外光ガス分析装置の開発

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導波路型キャビティーガスセルを用いた赤外光ガス分析装置の開発
２波長レーザ照射が可能な内視鏡治療装置

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２波長レーザ照射が可能な内視鏡治療装置の開発
細径内視鏡を用いた赤外リモート分光システム

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細径内視鏡を用いた赤外リモート分光システムの開発
中空光ファイバを用いた泌尿器科および耳鼻科治療用レーザー細径内視鏡の開発

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レーザ内視鏡
実験動物用のオプティカルバイオプシーシステムの開発

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ファイバラマンプローブ
テラヘルツ波伝送用フレキシブル導波路の開発

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テラヘルツ用ファイｂ
金属薄膜内装ガラスキャピラリバンドルを用いた軟X線コリメーションに関する研究

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Ｘ線光学素子
中空ファイバを用いたエキシマレーザ光伝送路

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紫外用中空ファイバ
細径内視鏡を用いた赤外リモート分光システム

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赤外リモート分光

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