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Proceedings Paper

Direct absorption measurement of ambient nitric oxide based on room-temperature pulsed quantum cascade laser
Author(s): Yuan-yuan Tang; Wen-Qing Liu; Rui-Feng Kan; Yu-Jun Zhang; Yi-Ben Cui; Zhen-Yu Xu
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Paper Abstract

The Mid-infrared lasers are very effective for high-sensitive trace gas detection for the fundamental absorption lines of most gases. The quantum cascade (QC) laser, with the advantages of high power, wide tuning range and room-temperature operating conditions, is one of the ideal mid-IR sources developed in these years. The technology combing the room-temperature pulsed quantum cascade laser and the long-path multipass absorption cell can satisfy the need for the sensitivity, selectivity and rapid response. A set of experimental apparatus for the direct absorption measurement of ambient nitric oxide(NO) with the room-temperature pulsed QC laser was presented. With this system a NO concentration of 188ppb was demonstrated, along with an estimated detection limit of 4ppb. The results show that this experimental apparatus can fulfill the detection of NO concentration in ambient air.

Paper Details

Date Published: 16 October 2010
PDF: 8 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76565F (16 October 2010); doi: 10.1117/12.866203
Show Author Affiliations
Yuan-yuan Tang, Anhui Institute of Optics and Fine Mechanics (China)
Wen-Qing Liu, Anhui Institute of Optics and Fine Mechanics (China)
Rui-Feng Kan, Anhui Institute of Optics and Fine Mechanics (China)
Yu-Jun Zhang, Anhui Institute of Optics and Fine Mechanics (China)
Yi-Ben Cui, Anhui Institute of Optics and Fine Mechanics (China)
Zhen-Yu Xu, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

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