HIGH-RESOLUTION X-RAY SPECTROSCOPY OF A 80 FS LASER-PRODUCED AL PLASMA

被引：59

作者：

AUDEBERT, P ^{[1
]}

GEINDRE, JP ^{[1
]}

GAUTHIER, JC ^{[1
]}

MYSYROWICZ, A ^{[1
]}

CHAMBARET, JP ^{[1
]}

ANTONETTI, A ^{[1
]}

机构：

[1] ECOLE NATL SUPER TECN AVANCEES,OPT APPL LAB,F-91120 PALAISEAU,FRANCE

来源：

EUROPHYSICS LETTERS | 1992年 / 19卷 / 03期

关键词：

PLASMA PRODUCTION AND HEATING BY LASER BEAMS; EMISSION; ABSORPTION; AND SCATTERING OF RADIATION;

D O I：

10.1209/0295-5075/19/3/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Aluminum targets irradiated with intense (I approximately 10(17)W/cm2) 80 fs laser pulses are shown to emit strong K-alpha lines in the kV spectral region. The analysis of the spectra indicates that suprathermal electrons play an important role in the laser energy deposition and transport. Hydrodynamic simulations taking into account hot electron transport are in quantitative agreement with the measurements. Based on these simulations, the duration of the suprathermal X-ray emission is shown to be comparable to the incident optical pulse.

引用

页码：189 / 194

页数：6

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