Observation of large-angle quasimonoenergetic electrons from a laser wakefield

被引：21

作者：

Kaganovich, D. ^{[1
]}

Gordon, D. F. ^{[1
]}

Ting, A. ^{[1
]}

机构：

[1] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.100.215002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A relativistically intense laser pulse is focused into a helium jet and quasimonoenergetic electrons emitted at a 40 degrees angle with respect to the laser axis are observed. The average electron energy is between 1 and 2 MeV and the total accelerated charge is about 1 nC emitted in a 10 degrees cone angle. Three dimensional particle-in-cell simulations reproduce key features of the experimental results and show that the interaction between ionization heating and nonlinear cavitation wakefields is responsible for the acceleration.

引用

页数：4

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