Spatial-Resolved Measurement and Analysis of Extreme-Ultraviolet Emission Spectra from Laser-Produced Al Plasmas

被引：0
|
作者：
曹世权 [1 ]
苏茂根 [1 ,2 ]
孙对兄 [1 ,2 ]
敏琦 [1 ]
董晨钟 [1 ,2 ]
机构：
[1] Key Laboratory of Atomic and Molecular Physics & Functional Material of Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University
[2] Joint Laboratory of Atomic and Molecular Physics,Northwest Normal University and Institute of Modern Physics of Chinese Academy of Sciences
来源：
Chinese Physics Letters | 2016年 / 04期
基金：
中国国家自然科学基金;
关键词：
of; on; is; Al; from; in;
D O I：
暂无
中图分类号：
TN249 [激光的应用]; O53 [等离子体物理学];
学科分类号：
070204 ; 0803 ; 080401 ; 080901 ;
摘要：
Extreme ultraviolet emission from laser-produced A1 plasma is experimentally and theoretically investigated.Spatial-evolution emission spectra are measured by using the spatio-temporally resolved laser produced plasma technique.Based on the assumptions of a normalized Boltzmann distribution among the excited states and a steady-state collisional-radiative model,we succeed in reproducing the spectra at different detection positions,which are in good agreement with experiments.The decay curves about the electron temperature and electron density,as well as the fractions of individual A1 ions and average ionization stage with increasing the detection distance are obtained by comparison with the experimental measurements.These parameters are critical points for deeply understanding the expanding and cooling of laser produced plasmas in vacuum.
引用
收藏
页码：80 / 83
页数：4
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