Experimental evidence of differences in properties of fast ion fluxes from short-pulse and long-pulse laser-plasma interactions

被引：38

作者：

Badziak, J

Hora, H

Woryna, E

Jablonski, S

Laska, L

Parys, P

Rohlena, K

Wolowski, J

机构：

[1] Inst Plasma Phys & Laser Microfus, PL-00908 Warsaw, Poland

[2] Univ New S Wales, Dept Theoret Phys, Sydney, NSW, Australia

[3] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

来源：

PHYSICS LETTERS A | 2003年 / 315卷 / 06期

关键词：

D O I：

10.1016/S0375-9601(03)01101-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Essential differences in properties of fast ion fluxes from the interaction of 1 ps and 0.5 ns laser pulses with Au target have been observed. In the short-pulse case, only a single fast ion group with a small angular divergence is generated and ions are likely to be accelerated by an axial ponderomotive force from the skin-layer interaction. In the long-pulse case, at least two groups of fast ions are emitted into a wide solid angle and the ion flux properties seem to be determined by self-focussing of the laser beam in plasma. (C) 2003 Published by Elsevier B.V.

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页码：452 / 457

页数：6

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