CONCENTRATION-MODULATED ABSORPTION-SPECTROSCOPY - PROFILES OF THE NA D-LINES IN A HYDROCARBON FLAME

被引：0
|
作者：
BEAMAN, RA [1 ]
JONES, WJ [1 ]
机构：
[1] UNIV COLL SWANSEA,DEPT CHEM,SWANSEA SA2 8PP,W GLAM,WALES
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1994年 / 27卷 / 11期
关键词：
D O I：
10.1088/0953-4075/27/11/010
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The potential value of pump-probe spectroscopy for the study of the spectral profiles of narrow gas-phase absorption lines has been investigated using the technique of concentration-modulated absorption spectroscopy (COMAS). The relationship of the probe laser 'gain' to the absorption line profile is established and the parameters of the Voigt line profile for the 3p P-2(1/2)-3s S-2(1/2) transition of atomic sodium in a hydrocarbon flame have been determined. The effects of a significant reduction in the Doppler contribution to the linewidth of this transition in the flame are clearly identified.
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页码：2139 / 2150
页数：12
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