Interaction of intense laser pulses with preformed density channels

被引：16

作者：

Mackinnon, AJ ^{[1
]}

Borghesi, M ^{[1
]}

Iwase, A ^{[1
]}

Willi, O ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.80.5349

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interaction of a high-intensity laser pulse with a plasma density channel preformed in a gas jet target has been studied. At neutral densities below 3.0 X 10(19) cm(-3) a strong interaction between the pulse and the channel walls was observed, there was clear evidence of pulse confinement, and the laser irradiance was significantly increased compared to an interaction with neutral gas. At higher gas densities, however, the radial uniformity and length of the channel were both found to be adversely affected by refractive defocusing of the prepulse used to generate the channel.

引用

页码：5349 / 5352

页数：4