Influence of laser intensity on absorption line broadening in laser absorption spectroscopy

被引：16
|
作者：
Matsui, Makoto
Komurasaki, Kimiya
Ogawa, Satoshi
Arakawa, Yoshihiro
机构：
[1] Univ Tokyo, Dept Adv Energy, Kashiwa, Chiba 2778583, Japan
[2] Univ Tokyo, Dept Aeronaut & Astronaut, Bunkyo Ku, Tokyo 1138656, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2006年 / 100卷 / 06期
基金：
日本学术振兴会;
关键词：
D O I：
10.1063/1.2353893
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of laser intensity on absorption line broadening was investigated. Laser absorption spectroscopy was applied to low-pressure plasma, and the translational temperature deduced from the Doppler width was found to increase with laser intensity; this was in contrast to the conventional laser theory. Consequently, the dependency of absorption saturation on the Doppler frequency was considered. The predicted variation in broadening width with laser intensity showed a good agreement with the measurement. In addition, we obtained a correction factor for the temperature measurement at high laser intensity. (c) 2006 American Institute of Physics.
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页数：4
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