Polarization properties of the Ly-α line from sulphur plasmas driven by high-intensity, ultrashort-duration laser pulses

被引：1
作者：
Hakel, Peter [1 ]
机构：
[1] Univ Nevada, Reno, NV 89557 USA
来源：
CANADIAN JOURNAL OF PHYSICS | 2011年 / 89卷 / 05期
关键词：
DIELECTRONIC SATELLITE LINES; RAY; EXCITATION; ANISOTROPY; ELECTRONS; EMISSION; SPECTRA;
D O I：
10.1139/P10-100
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on a modeling study of the polarization properties of the Ly-alpha line in sulphur. The lower energy (J=1/2) fine-structure component is unpolarized, while the polarization degree of the higher energy component (J=3/2) can serve as a signature of an anisotropic electron distribution. We calculate the polarization degree of the J=3/2 component with the help of a magnetic-sublevel population atomic kinetics model for plasma conditions that can arise in laser-produced plasma experiments. This demonstrates how observed polarization properties of the Ly-alpha could be connected with the characteristics of an anisotropic electron distribution.
引用
收藏
页码：509 / 511
页数：3
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