Highly sensitive detection using Herriott cell for laser absorption spectroscopy

Chongyi Zhao; Guangming Song; Yang Du; Xiaojun Zhao; Wenju Wang; Liujun Zhong; Mai Hu

doi:10.1117/12.2250680

7 November 2016 Highly sensitive detection using Herriott cell for laser absorption spectroscopy

Chongyi Zhao, Guangming Song, Yang Du, Xiaojun Zhao, Wenju Wang, Liujun Zhong, Mai Hu

Author Affiliations +

Proceedings Volume 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016; 1014112 (2016) https://doi.org/10.1117/12.2250680
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held July 2016, 2016, Changchun, China

Abstract

The tunable diode laser absorption spectroscopy combined with the long absorption path technique is a significant method to detect harmful gas. The long optical path could come true by Herriott cell reducing the size of the spectrometers. A 15 cm long Herriott cell with 28.8 m optical absorption path after 96 times reflection was designed that enhanced detection sensitivity of absorption spectroscopy. According to the theory data of calculation, Herriott cell is analyzed and simulated by softwares Matlab and Lighttools.

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Chongyi Zhao, Guangming Song, Yang Du, Xiaojun Zhao, Wenju Wang, Liujun Zhong, and Mai Hu "Highly sensitive detection using Herriott cell for laser absorption spectroscopy ", Proc. SPIE 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016, 1014112 (7 November 2016); https://doi.org/10.1117/12.2250680

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KEYWORDS

Mirrors

Absorption spectroscopy

Absorption

MATLAB

Geometrical optics

Laser spectroscopy

Optical gas detection

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