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Paper Abstract and Keywords
Presentation 2013-08-29 18:10
In-situ gas monitoring system using 4.6-μm-band difference frequency generation light source for N2O detection in agricultural production
Akio Tokura, Masaki Asobe, Koji Enbutsu (NTT), Toshihiro Yoshihara, Shin-nosuke Hashida (CRIEPI), Hirokazu Takenouchi (NTT) R2013-46 EMD2013-52 CPM2013-71 OPE2013-75 LQE2013-45
Abstract (in Japanese) (See Japanese page) 
(in English) This article describes a gas monitoring system for detecting nitrous oxide (N2O) gas using a compact mid-infrared laser source based on difference-frequency generation in a quasi-phase-matched LiNbO3 waveguide. We obtained a stable output power of 0.62 mW from a 4.6-μm-band continuous-wave laser source operating at room temperature. A detection limit of 35 parts per billion for N2O detection was obtained. Using this laser source, we constructed a new real-time in-situ monitoring system for detecting N2O gas emitted from potted plants. A few weeks of monitoring with the developed detection system revealed a strong relationship between nitrogen fertilization and N2O emission. This system is promising for the in-situ long-term monitoring of N2O in agricultural production, and it is also applicable to the detection of other greenhouse gases.
Keyword (in Japanese) (See Japanese page) 
(in English) Periodically poled LiNbO3 (PPLN) / Mid-infrared laser source / Nitrous oxide / Wavelength modulation spectroscopy (WMS) / Gas monitoring / Cultivated plant / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 188, CPM2013-71, pp. 89-94, Aug. 2013.
Paper # CPM2013-71 
Date of Issue 2013-08-22 (R, EMD, CPM, OPE, LQE) 
ISSN Print edition: ISSN 0913-5685    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 R2013-46 EMD2013-52 CPM2013-71 OPE2013-75 LQE2013-45

Conference Information
Committee OPE LQE CPM EMD R  
Conference Date 2013-08-29 - 2013-08-30 
Place (in Japanese) (See Japanese page) 
Place (in English) sun-refre Hakodate 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2013-08-OPE-LQE-CPM-EMD-R 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) In-situ gas monitoring system using 4.6-μm-band difference frequency generation light source for N2O detection in agricultural production 
Sub Title (in English)  
Keyword(1) Periodically poled LiNbO3 (PPLN)  
Keyword(2) Mid-infrared laser source  
Keyword(3) Nitrous oxide  
Keyword(4) Wavelength modulation spectroscopy (WMS)  
Keyword(5) Gas monitoring  
Keyword(6) Cultivated plant  
Keyword(7)  
Keyword(8)  
1st Author's Name Akio Tokura  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Masaki Asobe  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Koji Enbutsu  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Toshihiro Yoshihara  
4th Author's Affiliation Central Research Institute of Electric Power Industry (CRIEPI)
5th Author's Name Shin-nosuke Hashida  
5th Author's Affiliation Central Research Institute of Electric Power Industry (CRIEPI)
6th Author's Name Hirokazu Takenouchi  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2013-08-29 18:10:00 
Presentation Time 25 minutes 
Registration for CPM 
Paper # R2013-46, EMD2013-52, CPM2013-71, OPE2013-75, LQE2013-45 
Volume (vol) vol.113 
Number (no) no.186(R), no.187(EMD), no.188(CPM), no.189(OPE), no.190(LQE) 
Page pp.89-94 
#Pages 6 
Date of Issue 2013-08-22 (R, EMD, CPM, OPE, LQE) 

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