Ringdown and cavity-enhanced absorption spectroscopy using a continuous-wave tunable diode laser and a rapidly swept optical cavity

被引：66

作者：

He, YB

Orr, BJ ^{[1
]}

机构：

[1] Macquarie Univ, Dept Chem, Sydney, NSW 2109, Australia

[2] Macquarie Univ, Ctr Lasers & Applicat, Sydney, NSW 2109, Australia

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 319卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/S0009-2614(00)00107-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We use a rapidly swept optical cavity in a novel approach to cavity ringdown spectroscopy (CRDS) with a continuous-wave (cw) laser. This simplifies cw-CRDS by eliminating the need for a fast optical switch and is demonstrated by recording weak combination-band spectra of carbon dioxide diluted in nitrogen, using a cw single-mode tunable diode laser (TDL) in the 1.55 mu m near-infrared region. We employ a simultaneous combination of CRDS and cavity-enhanced absorption spectroscopy, to compensate for nonlinear CRDS response that is observed for stronger absorption features. Experimental results and performance characteristics are presented, together with numerical simulations. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：131 / 137

页数：7

共 30 条

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