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H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode
In this work, we report on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for hydrogen sulfide (H(2)S) detection, exploiting a liquid-nitrogen-cooled THz quantum cascade laser (QCL) operating in pulsed mode. The spectrophone was designed to accommodate a THz QCL beam and consisted of a...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7786112/ https://www.ncbi.nlm.nih.gov/pubmed/33437615 http://dx.doi.org/10.1016/j.pacs.2020.100219 |
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author | Sampaolo, Angelo Yu, Chenren Wei, Tingting Zifarelli, Andrea Giglio, Marilena Patimisco, Pietro Zhu, Huan Zhu, Haiqing He, Li Wu, Hongpeng Dong, Lei Xu, Gangyi Spagnolo, Vincenzo |
author_facet | Sampaolo, Angelo Yu, Chenren Wei, Tingting Zifarelli, Andrea Giglio, Marilena Patimisco, Pietro Zhu, Huan Zhu, Haiqing He, Li Wu, Hongpeng Dong, Lei Xu, Gangyi Spagnolo, Vincenzo |
author_sort | Sampaolo, Angelo |
collection | PubMed |
description | In this work, we report on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for hydrogen sulfide (H(2)S) detection, exploiting a liquid-nitrogen-cooled THz quantum cascade laser (QCL) operating in pulsed mode. The spectrophone was designed to accommodate a THz QCL beam and consisted of a custom quartz tuning fork with a large prong spacing, coupled with acoustic resonator tubes. The targeted rotational transition falls at 2.87 THz (95.626 cm(−1)), with a line-strength of 5.53 [Formula: see text] 10(-20) cm/mol. A THz QCL peak power of 150 mW was measured at a heat sink temperature of 81 K, pulse width of 1 μs and repetition rate of 15.8 kHz. A QEPAS record sensitivity for H(2)S detection in the THz range of 360 part-per-billion in volume was achieved at a gas pressure of 60 Torr and 10 s integration time. |
format | Online Article Text |
id | pubmed-7786112 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-77861122021-01-11 H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode Sampaolo, Angelo Yu, Chenren Wei, Tingting Zifarelli, Andrea Giglio, Marilena Patimisco, Pietro Zhu, Huan Zhu, Haiqing He, Li Wu, Hongpeng Dong, Lei Xu, Gangyi Spagnolo, Vincenzo Photoacoustics Research Article In this work, we report on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for hydrogen sulfide (H(2)S) detection, exploiting a liquid-nitrogen-cooled THz quantum cascade laser (QCL) operating in pulsed mode. The spectrophone was designed to accommodate a THz QCL beam and consisted of a custom quartz tuning fork with a large prong spacing, coupled with acoustic resonator tubes. The targeted rotational transition falls at 2.87 THz (95.626 cm(−1)), with a line-strength of 5.53 [Formula: see text] 10(-20) cm/mol. A THz QCL peak power of 150 mW was measured at a heat sink temperature of 81 K, pulse width of 1 μs and repetition rate of 15.8 kHz. A QEPAS record sensitivity for H(2)S detection in the THz range of 360 part-per-billion in volume was achieved at a gas pressure of 60 Torr and 10 s integration time. Elsevier 2020-12-09 /pmc/articles/PMC7786112/ /pubmed/33437615 http://dx.doi.org/10.1016/j.pacs.2020.100219 Text en © 2020 The Author(s) http://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 Sampaolo, Angelo Yu, Chenren Wei, Tingting Zifarelli, Andrea Giglio, Marilena Patimisco, Pietro Zhu, Huan Zhu, Haiqing He, Li Wu, Hongpeng Dong, Lei Xu, Gangyi Spagnolo, Vincenzo H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title | H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title_full | H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title_fullStr | H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title_full_unstemmed | H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title_short | H(2)S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode |
title_sort | h(2)s quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled thz quantum cascade laser operating in pulsed mode |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7786112/ https://www.ncbi.nlm.nih.gov/pubmed/33437615 http://dx.doi.org/10.1016/j.pacs.2020.100219 |
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