Gas trace detection with cavity enhanced absorption spectroscopy: a review of its process in the field

Siqi Liu; Zhifu Luo; Zhongqi Tan; Xingwu Long

doi:10.1117/12.2245984

3 November 2016 Gas trace detection with cavity enhanced absorption spectroscopy: a review of its process in the field

Siqi Liu, Zhifu Luo, Zhongqi Tan, Xingwu Long

Proceedings Volume 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV; 100301C (2016) https://doi.org/10.1117/12.2245984
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Cavity-enhanced absorption spectroscopy (CEAS) is a technology in which the intracavity absorption is deduced from the intensity of light transmitted by the high finesse optical cavity. Then the samples’ parameters, such as their species, concentration and absorption cross section, would be detection. It was first proposed and demonstrated by Engeln R. ^[1] and O’Keefe^[2] in 1998. This technology has extraordinary detection sensitivity, high resolution and good practicability, so it is used in many fields , such as clinical medicine, gas detection and basic physics research. In this paper, we focus on the use of gas trace detection, including the advance of CEAS over the past twenty years, the newest research progresses, and the prediction of this technology’s development direction in the future.

Citation Download Citation

Siqi Liu, Zhifu Luo, Zhongqi Tan, and Xingwu Long "Gas trace detection with cavity enhanced absorption spectroscopy: a review of its process in the field", Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 100301C (3 November 2016); https://doi.org/10.1117/12.2245984

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