Time-resolved x-ray K-shell spectra from high density plasmas generated by ultrashort laser pulses -: art. no. 026407

被引：0
|
作者：
Andiel, U [1 ]
Eidmann, K [1 ]
Witte, K [1 ]
机构：
[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
PHYSICAL REVIEW E | 2001年 / 63卷 / 02期
关键词：
D O I：
暂无
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We present time-resolved x-ray spectra of C, F, Na, and Al, generated by focusing ultrashort frequency doubled Ti:sapphire laser pulses on solid plane targets. Using a high resolution x-ray streak camera in combination with a laser triggered accumulation system, we achieved a time resolution of 1.7 ps when adding the x-ray signal of many thousands of laser shots. K-shell resonance line emission with a duration in the range of 2-4 ps is observed. Ly a emission is generally observed to be faster than He ct emission and the x-ray pulse duration is observed to decrease with increasing atomic number. A hydrodynamic code in combination with an atomic kinetics code is applied for simulation of time-resolved plasma emission, showing good agreement with experimental data.
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页数：7
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