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Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room -temperature interband cascade laser
H. D. Zheng,Y. H. Liu,H. Y. Lin,R. F. Kan,P. Patimisco,A. Sampaolo,M. Giglio,W. G. Zhu,J. H. Yu,F. K. Tittel,V. Spagnolo and Z. Chen
2020
发表期刊Optics Express
ISSN1094-4087
卷号28期号:13页码:19446-19456
摘要An ultra-highly sensitive and robust CH4 sensor is reported based on a 3.3 mu m interband cascade laser (ICL) and a low-noise differential photoacoustic (PAS) cell. The ICL emission wavelength targeted a fundamental absorption line of CH4 at 2988.795 cm(-1) with an intensity of 1.08 x 10(-19) cm/molecule. The double-pass and differential design of the PAS cell effectively enhanced the PAS signal amplitude and decreased its background noise. The wavelength modulation depth, operating pressure and V-T relaxation promotion were optimized to maximize the sensor detection limit. With an integration time of 90 s, a detection limit of 0.6 ppb was achieved. No additional water or air laser cooling were required and thereby allowing the realization of a compact and robust CH4 sensor. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
DOI10.1364/oe.391322
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64925
专题中国科学院长春光学精密机械与物理研究所
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H. D. Zheng,Y. H. Liu,H. Y. Lin,R. F. Kan,P. Patimisco,A. Sampaolo,M. Giglio,W. G. Zhu,J. H. Yu,F. K. Tittel,V. Spagnolo and Z. Chen. Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room -temperature interband cascade laser[J]. Optics Express,2020,28(13):19446-19456.
APA H. D. Zheng,Y. H. Liu,H. Y. Lin,R. F. Kan,P. Patimisco,A. Sampaolo,M. Giglio,W. G. Zhu,J. H. Yu,F. K. Tittel,V. Spagnolo and Z. Chen.(2020).Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room -temperature interband cascade laser.Optics Express,28(13),19446-19456.
MLA H. D. Zheng,Y. H. Liu,H. Y. Lin,R. F. Kan,P. Patimisco,A. Sampaolo,M. Giglio,W. G. Zhu,J. H. Yu,F. K. Tittel,V. Spagnolo and Z. Chen."Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room -temperature interband cascade laser".Optics Express 28.13(2020):19446-19456.
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