13 January 2017 Studies of cavity enhanced absorption spectroscopy for weak absorption gas measurements
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Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 102541E (2017) https://doi.org/10.1117/12.2256664
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria
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.
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Liucheng Li, Liucheng Li, Liping Duo, Liping Duo, Deyu Gong, Deyu Gong, Yanhua Ma, Yanhua Ma, Zhiguo Zhang, Zhiguo Zhang, Yuanhu Wang, Yuanhu Wang, Dongjian Zhou, Dongjian Zhou, Yuqi Jin, Yuqi Jin, } "Studies of cavity enhanced absorption spectroscopy for weak absorption gas measurements", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102541E (13 January 2017); doi: 10.1117/12.2256664; https://doi.org/10.1117/12.2256664
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