InAsSb/InAsSbP和硫族铅化物红外二极管激光器在3.2微米和5微米区域用于光声检测的应用。

Application of InAsSb/InAsSbP and lead chalcogenide infrared diode lasers for photoacoustic detection in the 3.2 and 5 microm region.

作者信息

Kania P, Civis S

机构信息

J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejskova 3, 18223 Prague 8, Czech Republic.

出版信息

Spectrochim Acta A Mol Biomol Spectrosc. 2003 Nov;59(13):3063-74. doi: 10.1016/s1386-1425(03)00110-0.

DOI:10.1016/s1386-1425(03)00110-0

PMID:14583281

Abstract

An investigation of photoacoustic detection using 3.2-3.6 and 5 mum diode lasers is described. An inexpensive resonant photoacoustic system was developed based, on a simple glass cell and condenser and electret microphone (Brüel & Kjaer type 4144/Sennheiser type K6P). The system was tested on the single rotation-vibration lines of C(2)H(2), CO, COS, and NH(3) gases. The best detection limits obtained are 300 ppm V for C(2)H(2) and 20 ppm V for COS. Potential applications of infrared diode laser photoacoustic detection lie in the areas of analytical chemistry, atmospheric research, and investigation of the kinetics of reactive species.

摘要

描述了使用3.2 - 3.6微米和5微米二极管激光器进行光声检测的研究。基于一个简单的玻璃池、电容器和驻极体麦克风（Brüel & Kjaer 4144型/Sennheiser K6P型）开发了一种廉价的共振光声系统。该系统在C₂H₂、CO、COS和NH₃气体的单转动 - 振动谱线上进行了测试。获得的最佳检测限为：C₂H₂为300 ppm V，COS为20 ppm V。红外二极管激光光声检测的潜在应用领域包括分析化学、大气研究以及活性物种动力学研究。