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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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 |
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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 |
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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. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Lee, Jaehyun Lee, Keunwoo Yang, Jaewon Kim, Young-Jin Kim, Seung-Woo |
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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 |
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Comb segmentation spectroscopy for rapid detection of molecular absorption lines |
title_sort |
comb segmentation spectroscopy for rapid detection of molecular absorption lines |
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2019 |
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https://hdl.handle.net/10356/83541 http://hdl.handle.net/10220/49782 |
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1759853062271270912 |