Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room -temperature interband cascade laser
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | Optics Express
 |
| 出版日期 | 2020 |
| 卷号 | 28期号:13页码:19446-19456 |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/oe.391322 |
| 英文摘要 | 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 |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [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 |
| 推荐引用方式 GB/T 7714 | 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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