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Proceedings Paper

Research on trace gas measurement by ICOS with WMS
Author(s): Zhenglong Ni; Jie Shao; Haibo Zhou; Kunyang Wang
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Paper Abstract

Integrated cavity output spectroscopy (ICOS) is a very sensitive method of trace gas measurement. It is widely known as its extremely long optical path and characteristics of direct absorption. Wavelength Modulation Spectroscopy (WMS) is another sensitive measurement method that suppresses noise. We combine the ICOS technique and WMS technique to research the trace gas measurement using a narrow band tunable diode laser. By this method we get several absorption peaks of carbon dioxide in atmosphere. To combine ICOS and WMS the sensitivity of trace gas measurement has a significantly increase.

Paper Details

Date Published: 3 November 2016
PDF: 9 pages
Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 1003028 (3 November 2016); doi: 10.1117/12.2246212
Show Author Affiliations
Zhenglong Ni, Zhejiang Normal Univ. (China)
Jie Shao, Zhejiang Normal Univ. (China)
Haibo Zhou, Zhejiang Normal Univ. (China)
Kunyang Wang, Zhejiang Normal Univ. (China)


Published in SPIE Proceedings Vol. 10030:
Infrared, Millimeter-Wave, and Terahertz Technologies IV
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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