SPECTROSCOPY OF METHANE USING A ND-YAG LASER AT 1.34-MU-M

被引：6
|
作者：
SCOTT, JC
MADDEVER, RAM
PATON, AT
机构：
[1] Newcastle Laboratories, BHP Research, Wallsend, NSW, 2287
来源：
APPLIED OPTICS | 1992年 / 31卷 / 06期
关键词：
LIDAR; ND-YAG LASER; METHANE; REMOTE-SENSING; ABSORPTION COEFFICIENT;
D O I：
10.1364/AO.31.000815
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present measurements of the absorption coefficient of methane in the nu(2) + 2-nu(3) band obtained with a neodymium:yttrium aluminum garnet (Nd:YAG) laser tuned by the use of an intracavity etalon to 7472 cm-1 (1.3383-mu-m). The linewidth of the laser was shown to be comparable to that of the pressure-broadened methane feature while the absorption coefficient of methane at 1-atm pressure was measured to be 0.59 m-1 atm-1. These basic findings indicate that a practical methane detection system using laser radar (lidar) based on a Nd:YAG laser may be possible.
引用
收藏
页码：815 / 821
页数：7
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