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Paper Abstract and Keywords
Presentation 2020-10-23 16:05
Molecule-sensing scheme in which pair of distant comb-lines (delta 174 GHz) from all-optical semiconductor gate resonantly crosses acetylene-molecule's counterpart-pair of absorption lines.
Naoki Takahashi, Chaoyi Wang, Kyosuke Nagasaka, Yushi Suzuki, Kodai Ishida, Yoshiyasu Ueno (UEC) OCS2020-20 OPE2020-43 LQE2020-23
Abstract (in Japanese) (See Japanese page) 
(in English) Portable dilute-gas-molecule-density measurement systems are bases for monitoring environmental load-gas densities in industrial areas. So are they for health-care diagnostics done by analyzing patient’s breath-gas samples. In this work, we propose a gas-molecule-sensing scheme in which a pair of 174-GHz-separated comb-lines generated by 10.390-GHz-repetition mode-locked light source crosses an acetylene-molecule’s counterpart pair of 174-GHz-separated absorption lines located near optical frequency 195 THz (wavelength 1540 nm). In fact, we detected smooth resonance curves of this pair of optical absorption lines (each of whose widths was about 600 MHz) by precisely detuning all of this input comb’s optical-frequency positions near 195 THz by amount of delta 2 GHz, by which we demonstrated high specificity of this molecule-sensing scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) Laser sensing / Dilute-special-molecule’s gas-sensor / Optical-frequency-comb / narrow-bandwidth / all-optical-gate / vibration-rotation state / unequal-spacing /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 207, OPE2020-43, pp. 61-66, Oct. 2020.
Paper # OPE2020-43 
Date of Issue 2020-10-16 (OCS, OPE, LQE) 
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 OCS2020-20 OPE2020-43 LQE2020-23

Conference Information
Committee OPE OCS LQE  
Conference Date 2020-10-23 - 2020-10-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OPE 
Conference Code 2020-10-OPE-OCS-LQE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Molecule-sensing scheme in which pair of distant comb-lines (delta 174 GHz) from all-optical semiconductor gate resonantly crosses acetylene-molecule's counterpart-pair of absorption lines. 
Sub Title (in English)  
Keyword(1) Laser sensing  
Keyword(2) Dilute-special-molecule’s gas-sensor  
Keyword(3) Optical-frequency-comb  
Keyword(4) narrow-bandwidth  
Keyword(5) all-optical-gate  
Keyword(6) vibration-rotation state  
Keyword(7) unequal-spacing  
Keyword(8)  
1st Author's Name Naoki Takahashi  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Chaoyi Wang  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Kyosuke Nagasaka  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name Yushi Suzuki  
4th Author's Affiliation The University of Electro-Communications (UEC)
5th Author's Name Kodai Ishida  
5th Author's Affiliation The University of Electro-Communications (UEC)
6th Author's Name Yoshiyasu Ueno  
6th Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2020-10-23 16:05:00 
Presentation Time 25 minutes 
Registration for OPE 
Paper # OCS2020-20, OPE2020-43, LQE2020-23 
Volume (vol) vol.120 
Number (no) no.206(OCS), no.207(OPE), no.208(LQE) 
Page pp.61-66 
#Pages 6 
Date of Issue 2020-10-16 (OCS, OPE, LQE) 

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