Chirped laser dispersion spectroscopy for laser-based hydrogen sulfide detection in open-path conditions

被引：16
|
作者：
Nikodem, Michal [1 ]
机构：
[1] Wroclaw Res Ctr EIT, Laser Sensing Lab, Stablowicka 147, PL-53066 Wroclaw, Poland
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 10期
关键词：
ENHANCED PHOTOACOUSTIC SENSOR; H2S;
D O I：
10.1364/OE.24.00A878
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper the design and characterization of a near-IR Chirped Laser Dispersion Spectroscopy (CLaDS)-based setup for hydrogen sulfide (H2S) detection is reported. This system can be implemented for open-path sensing also in standoff configuration. Target transition selection, system noise and detection limit are discussed and characterized. Furthermore, the cross-interference with other molecules is analyzed. CLaDS-based detection is shown to be highly immune to background carbon dioxide changes, which is a critical issue in accurate open-path sensing of hydrogen sulfide. (C) 2016 Optical Society of America
引用
收藏
页码：A878 / A884
页数：7
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