Asymmetry and speed-dependent effects on the 748.8 nm self-broadened neon line

被引:4
|
作者
Urbanowicz, A. [1 ]
Bielski, A. [1 ]
Lisak, D. [1 ]
Ciurylo, R. [1 ]
Trawinski, R. S. [1 ]
机构
[1] Uniwersytet Mikolaja Kopernika, Inst Fiz, PL-87100 Torun, Poland
来源
EUROPEAN PHYSICAL JOURNAL D | 2010年 / 56卷 / 01期
关键词
COLLISION-TIME ASYMMETRY; FABRY-PEROT-INTERFEROMETER; SPECTRAL-LINES; RESONANCE LINE; VOIGT PROFILE; DISSOCIATIVE RECOMBINATION; CADMIUM INTERCOMBINATION; GAS SYSTEMS; PRESSURE; SHIFT;
D O I
10.1140/epjd/e2009-00257-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using an interferometric method, detailed analysis of the self-broadened 748.8 nm Ne line shapes emitted from the glow discharge of neon was performed, where departures from the ordinary Voigt profile were observed. These departures are shown to be consistent with fits of the speed-dependent asymmetric Voigt profile to experimental profiles. It was shown that neglecting the correlation between Doppler and collisional broadening may cause errors in determined line shape parameter values. Coefficients of the pressure broadening, shift and collision-time asymmetry are determined and compared with those calculated in the adiabatic approximation for the van der Waals and Lennard-Jones potentials.
引用
收藏
页码:17 / 25
页数:9
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