Cavity-enhanced absorption detection of H2S in the near-infrared using a gain-switched frequency comb laser

被引：16

作者：

Chandran, S. ^{[1
,2
]}

Mahon, S. ^{[1
,2
,4
]}

Ruth, A. A. ^{[1
,2
]}

Braddell, J. ^{[3
]}

Gutierrez, M. D. ^{[3
]}

机构：

[1] Univ Coll Cork, Phys Dept, Cork, Ireland

[2] Univ Coll Cork, Environm Res Inst, Cork, Ireland

[3] Dublin City Univ, Pilot Photon Ltd, Invent Ctr, Dublin 9, Ireland

[4] Scottish Microelect Ctr, Kings Bldg,Alexander Crum Brown Rd, Edinburgh EH9 3FF, Midlothian, Scotland

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2018年 / 124卷 / 04期

基金：

爱尔兰科学基金会;

关键词：

FOURIER-TRANSFORM SPECTROSCOPY; RESOLVED MODES; NOBEL LECTURE; BAND; SPECTRUM;

D O I：

10.1007/s00340-018-6931-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A custom-designed gain-switched frequency comb laser was passively coupled of to a medium-finesse cavity in the region between 6346 and 6354 cm(-1) for the development of a prototype cavity enhanced absorption setup. The setup was applied to static gas detection of hydrogen sulfide at the parts per thousand level in a laboratory environment. A Fourier transform spectrometer was used for signal detection. The experimental performance of the setup was characterized in this proof-of-principle investigation; advantages, drawbacks and future scope of the approach are discussed in this article.

引用

页数：9

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