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
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Online Access:https://hdl.handle.net/10356/83541
http://hdl.handle.net/10220/49782
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Institution: Nanyang Technological University
Language: English
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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