Laser light and hot electron micro focusing using a conical target

被引：182

作者：

Sentoku, Y ^{[1
]}

Mima, K

Ruhl, H

Toyama, Y

Kodama, R

Cowan, TE

机构：

[1] Univ Nevada, Dept Phys, Reno, NV 89521 USA

[2] Osaka Univ, Inst Laser Engn, Osaka, Japan

来源：

PHYSICS OF PLASMAS | 2004年 / 11卷 / 06期

关键词：

D O I：

10.1063/1.1735734

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：

The laser light propagation inside the conical target had been studied by three-dimensional particle-in-cell simulations. It is found that the laser light is optically guided inside the conical target and focused at the tip of the cone. The intensity increases up to several tens of times in a several micron focal spot. It is the convergence of hot electrons to the head of the cone that is observed as a consequence of the surface electron flow guided by self-generated quasistatic magnetic fields and electrostatic sheath fields. As a result, the hot electron density at the tip is locally ten times greater than the case of using a normal flat foil. (C) 2004 American Institute of Physics.

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页码：3083 / 3087

页数：5

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