Comb segmentation spectroscopy for rapid detection of molecular absorption lines

We perform fast comb spectroscopy by dividing the probe comb into several sub-comb segments so as to produce multi-heterodyne beats focused around targeted molecular absorption lines. This concentrated scheme of comb spectroscopy is able to achieve a 30 dB signal-to-noise ratio with just a single sh...

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Main Authors:	Lee, Jaehyun, Lee, Keunwoo, Yang, Jaewon, Kim, Young-Jin, Kim, Seung-Woo
Other Authors:	School of Mechanical and Aerospace Engineering
Format:	Article
Language:	English
Published:	2019
Subjects:	Comb Segmentation Spectroscopy Absorption Lines Engineering::Mechanical engineering
Online Access:	https://hdl.handle.net/10356/83541 http://hdl.handle.net/10220/49782
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-83541
record_format	dspace
spelling	sg-ntu-dr.10356-835412023-03-04T17:14:20Z Comb segmentation spectroscopy for rapid detection of molecular absorption lines Lee, Jaehyun Lee, Keunwoo Yang, Jaewon Kim, Young-Jin Kim, Seung-Woo School of Mechanical and Aerospace Engineering Comb Segmentation Spectroscopy Absorption Lines Engineering::Mechanical engineering We perform fast comb spectroscopy by dividing the probe comb into several sub-comb segments so as to produce multi-heterodyne beats focused around targeted molecular absorption lines. This concentrated scheme of comb spectroscopy is able to achieve a 30 dB signal-to-noise ratio with just a single shot measurement of 10 μs acquisition time. Such high signal sensitivity is verified by measuring separate absorption lines of H13C14N and 12CO2 gases simultaneously. In addition, atmospheric 12CO2 concentration over a 1.3 km open-air path is traced with a signal repeatability of 15 ppm at a 5 kHz update rate. Published version 2019-08-27T02:06:58Z 2019-12-06T15:25:13Z 2019-08-27T02:06:58Z 2019-12-06T15:25:13Z 2019 Journal Article Lee, J., Lee, K., Yang, J., Kim, Y.-J., & Kim, S.-W. (2019). Comb segmentation spectroscopy for rapid detection of molecular absorption lines. Optics Express, 27(6), 9088-9096. doi:10.1364/OE.27.009088 1094-4087 https://hdl.handle.net/10356/83541 http://hdl.handle.net/10220/49782 10.1364/OE.27.009088 en Optics Express © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. 9 p. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	Comb Segmentation Spectroscopy Absorption Lines Engineering::Mechanical engineering
spellingShingle	Comb Segmentation Spectroscopy Absorption Lines Engineering::Mechanical engineering Lee, Jaehyun Lee, Keunwoo Yang, Jaewon Kim, Young-Jin Kim, Seung-Woo Comb segmentation spectroscopy for rapid detection of molecular absorption lines
description	We perform fast comb spectroscopy by dividing the probe comb into several sub-comb segments so as to produce multi-heterodyne beats focused around targeted molecular absorption lines. This concentrated scheme of comb spectroscopy is able to achieve a 30 dB signal-to-noise ratio with just a single shot measurement of 10 μs acquisition time. Such high signal sensitivity is verified by measuring separate absorption lines of H13C14N and 12CO2 gases simultaneously. In addition, atmospheric 12CO2 concentration over a 1.3 km open-air path is traced with a signal repeatability of 15 ppm at a 5 kHz update rate.
author2	School of Mechanical and Aerospace Engineering
author_facet	School of Mechanical and Aerospace Engineering Lee, Jaehyun Lee, Keunwoo Yang, Jaewon Kim, Young-Jin Kim, Seung-Woo
format	Article
author	Lee, Jaehyun Lee, Keunwoo Yang, Jaewon Kim, Young-Jin Kim, Seung-Woo
author_sort	Lee, Jaehyun
title	Comb segmentation spectroscopy for rapid detection of molecular absorption lines
title_short	Comb segmentation spectroscopy for rapid detection of molecular absorption lines
title_full	Comb segmentation spectroscopy for rapid detection of molecular absorption lines
title_fullStr	Comb segmentation spectroscopy for rapid detection of molecular absorption lines
title_full_unstemmed	Comb segmentation spectroscopy for rapid detection of molecular absorption lines
title_sort	comb segmentation spectroscopy for rapid detection of molecular absorption lines
publishDate	2019
url	https://hdl.handle.net/10356/83541 http://hdl.handle.net/10220/49782
_version_	1759853062271270912

Comb segmentation spectroscopy for rapid detection of molecular absorption lines

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