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Paper Abstract and Keywords
Presentation 2022-10-14 14:30
Highly sensitive ammonia gas detection using hollow-optical-fiber gas cell for mid-infrared light
Yusaku Omura, Saiko Kino, Yuji Matsuura (Tohoku Univ.) OFT2022-34
Abstract (in Japanese) (See Japanese page) 
(in English) Mid-infrared absorption spectroscopy using a hollow-optical-fiber gas cell was used to detect minute concentrations of ammonia gas which is known as a biomarker of liver and kidney function. Hollow-optical-fiber was used as as a gas cell with long optical path length and small volume, and is suitable for the detection of biomarker gases in exhaled breath. In this report, we investigated reduction of transmission loss of the fiber to increase the sensitivity by using a longer optical fiber. As a result, we succeeded in detecting sub-ppm ammonia gas at exhaled concentration by using a quantum cascade laser and a hollow optical fiber.
Keyword (in Japanese) (See Japanese page) 
(in English) Hollow-optical-fiber / Mid-infrared spectroscopy / Gas detection / Ammonia / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 210, OFT2022-34, pp. 67-72, Oct. 2022.
Paper # OFT2022-34 
Date of Issue 2022-10-06 (OFT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF OFT2022-34

Conference Information
Committee OFT  
Conference Date 2022-10-13 - 2022-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanagawa-Kenmin Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2022-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Highly sensitive ammonia gas detection using hollow-optical-fiber gas cell for mid-infrared light 
Sub Title (in English)  
Keyword(1) Hollow-optical-fiber  
Keyword(2) Mid-infrared spectroscopy  
Keyword(3) Gas detection  
Keyword(4) Ammonia  
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1st Author's Name Yusaku Omura  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Saiko Kino  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Yuji Matsuura  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2022-10-14 14:30:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2022-34 
Volume (vol) vol.122 
Number (no) no.210 
Page pp.67-72 
#Pages 6 
Date of Issue 2022-10-06 (OFT) 

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