A compact quantum-cascade laser based spectrometer for monitoring the concentrations of methane and nitrous oxide in the troposphere

被引：23
|
作者：
Wright, S. [1 ]
Duxbury, G. [1 ]
Langford, N. [1 ]
机构：
[1] Univ Strathclyde, Dept Phys, Scottish Univ Phys Alliance, Glasgow G4 0NG, Lanark, Scotland
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2006年 / 85卷 / 2-3期
基金：
英国自然环境研究理事会;
关键词：
D O I：
10.1007/s00340-006-2384-x
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A spectrometer, based on the frequency down-chirped radiation from a pulsed quantum-cascade laser, capable of detecting fluctuations in local ground level methane and nitrous oxide concentrations over a time scale of minutes, is presented. The applicability of this instrument to low-level atmospheric detection is demonstrated through sampling gases in two locations.
引用
收藏
页码：243 / 249
页数：7
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