Characteristic features of the x-ray spectra of a plasma produced by heating CO2 clusters by intense femtosecond laser pulses with λ=0.8 and 0.4 μm

被引：48

作者：

Dobosz, S ^{[1
]}

Schmidt, M

Perdrix, M

Meynadier, P

Gobert, O

Normand, D

Faenov, AY

Magunov, AI

Pikuz, TA

Skobelev, IY

Andreev, NE

机构：

[1] CEA, Ctr Etud Saclay, F-91191 Gif Sur Yvette, France

[2] All Russia Sci Res Inst engn Phys & Radio Engn Me, Ctr Data Spectra Multiply Charged Ions, Mendeleevo 141570, Russia

[3] Russian Acad Sci, Joint Inst High Temp, High Energy Dens Res Ctr, Moscow 127412, Russia

来源：

JETP LETTERS | 1998年 / 68卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.567894

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The x-ray spectra of a plasma produced by heating CO2 clusters with intense femtosecond laser pulses with lambda = 0.8 and lambda = 50.4 are mm mm investigated. Spatially resolved x-ray spectra of the cluster plasma are obtained. The observed characteristic features of the x-ray emission spectra show unequivocally that such a plasma contains quite a large relative number of ions (similar or equal to 10(-2)-10(-3)) with energies of 0.1- 1 MeV. The contour of the OVIII Ly(alpha) line is found to have characteristic features that are especially conspicuous when the clusters are heated with second-harmonic pulses. These features cannot be explained by any mechanisms known to the authors. (C) 1998 American Institute of Physics. [S0021-3640(98)00418-6]

引用

页码：485 / 491

页数：7

共 15 条

[1]

Andreev N.E., 1979, Sov. Phys.-JETP, V49, P492

[2] ULTRAHIGH POWER COMPRESSION FOR X-RAY AMPLIFICATION - MULTIPHOTON CLUSTER EXCITATION COMBINED WITH NONLINEAR CHANNELED PROPAGATION [J].