High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry

A high-sensitivity all-optical photoacoustic spectroscopy based on fast swept laser interferometry is proposed to trace gas detection. The momentary cavity length of the fiber-optic Fabry–Perot microphone is demodulated by a fast swept-laser interferometry with an instantaneous frequency demodulatio...

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Detalles Bibliográficos
Autores principales: Mao, Xuefeng, Ji, Xiaoyan, Tan, Yuting, Ye, Hao, Wang, Xiaofa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9420372/
https://www.ncbi.nlm.nih.gov/pubmed/36042699
http://dx.doi.org/10.1016/j.pacs.2022.100391
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author Mao, Xuefeng
Ji, Xiaoyan
Tan, Yuting
Ye, Hao
Wang, Xiaofa
author_facet Mao, Xuefeng
Ji, Xiaoyan
Tan, Yuting
Ye, Hao
Wang, Xiaofa
author_sort Mao, Xuefeng
collection PubMed
description A high-sensitivity all-optical photoacoustic spectroscopy based on fast swept laser interferometry is proposed to trace gas detection. The momentary cavity length of the fiber-optic Fabry–Perot microphone is demodulated by a fast swept-laser interferometry with an instantaneous frequency demodulation algorithm. The all-optical photoacoustic spectroscopy based on the designed microphone was tested for trace acetylene gas detection in the near-infrared region. The normalized noise equivalent absorption coefficient for acetylene gas is achieved to be 1.06 × 10(−9) cm(−1) W Hz(−1∕2).
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spelling pubmed-94203722022-08-29 High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry Mao, Xuefeng Ji, Xiaoyan Tan, Yuting Ye, Hao Wang, Xiaofa Photoacoustics Research Article A high-sensitivity all-optical photoacoustic spectroscopy based on fast swept laser interferometry is proposed to trace gas detection. The momentary cavity length of the fiber-optic Fabry–Perot microphone is demodulated by a fast swept-laser interferometry with an instantaneous frequency demodulation algorithm. The all-optical photoacoustic spectroscopy based on the designed microphone was tested for trace acetylene gas detection in the near-infrared region. The normalized noise equivalent absorption coefficient for acetylene gas is achieved to be 1.06 × 10(−9) cm(−1) W Hz(−1∕2). Elsevier 2022-08-19 /pmc/articles/PMC9420372/ /pubmed/36042699 http://dx.doi.org/10.1016/j.pacs.2022.100391 Text en © 2022 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Mao, Xuefeng
Ji, Xiaoyan
Tan, Yuting
Ye, Hao
Wang, Xiaofa
High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title_full High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title_fullStr High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title_full_unstemmed High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title_short High-sensitivity all-optical PA spectrometer based on fast swept laser interferometry
title_sort high-sensitivity all-optical pa spectrometer based on fast swept laser interferometry
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9420372/
https://www.ncbi.nlm.nih.gov/pubmed/36042699
http://dx.doi.org/10.1016/j.pacs.2022.100391
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