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Proceedings Paper

Studies of cavity enhanced absorption spectroscopy for weak absorption gas measurements
Author(s): Liucheng Li; Liping Duo; Deyu Gong; Yanhua Ma; Zhiguo Zhang; Yuanhu Wang; Dongjian Zhou; Yuqi Jin
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Paper Abstract

In order to determine the concentrations of trace amount metastable species in chemical lasers, an off-axis cavity enhanced absorption spectrometer for the detection of weak absorption gases has been built with a noise equivalent absorption sensitivity of 1.6x10-8 cm-1. The absorption spectrum of trace amount gaseous ammonia and water vapor was obtained with a spectral resolution of about 78 MHz. A multiple-line absorption spectroscopic method to determine the temperature of gaseous ammonia has been developed by use of multiple lines of ammonia molecule absorption spectrum.

Paper Details

Date Published: 13 January 2017
PDF: 6 pages
Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102541E (13 January 2017); doi: 10.1117/12.2256664
Show Author Affiliations
Liucheng Li, Dalian Institute of Chemical Physics (China)
Liping Duo, Dalian Institute of Chemical Physics (China)
Deyu Gong, Dalian Institute of Chemical Physics (China)
Yanhua Ma, Dalian Institute of Chemical Physics (China)
Zhiguo Zhang, Dalian Institute of Chemical Physics (China)
Yuanhu Wang, Dalian Institute of Chemical Physics (China)
Dongjian Zhou, Dalian Institute of Chemical Physics (China)
Yuqi Jin, Dalian Institute of Chemical Physics (China)


Published in SPIE Proceedings Vol. 10254:
XXI International Symposium on High Power Laser Systems and Applications 2016
Dieter Schuoecker; Richard Majer; Julia Brunnbauer, Editor(s)

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