The role of the prepulse in cluster heating by a high-power femtosecond laser pulse

被引:49
作者
Auguste, T [1 ]
D'Oliveira, P
Hulin, S
Monot, P
Abdallah, J
Faenov, AY
Skobelev, IY
Magunov, AI
Pikuz, TA
机构
[1] CEA Saclay, Ctr Etud Saclay, DSM, DRECAM,Serv Photons Atomes & Mol, F-91191 Gif Sur Yvette, France
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[3] VNIIFTRI, Ctr Multicharged Ion Spectrum Data, Mendeleyevsk 141570, Russia
关键词
D O I
10.1134/1.1312006
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The interaction of a 60-fs laser pulse with argon clusters was experimentally studied. It is shown that cluster heating by an intense femtosecond pulse preceded by a picosecond prepulse can produce plasma whose ionization state is determined by the prepulse properties, while the mean energy of hot electrons is determined by the main pulse intensity. A simple model of cluster plasma evolution is suggested, allowing an adequate description of its X-ray emission. (C) 2000 MAIK "Nauka/Interperiodica".
引用
收藏
页码:38 / 41
页数:4
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