Laser triggered injection of electrons in a laser Wakefield accelerator with the colliding pulse method

被引：0

作者：

Nakamura, K ^{[1
]}

Fubiani, G ^{[1
]}

Geddes, CGR ^{[1
]}

Michel, P ^{[1
]}

van Tilborg, J ^{[1
]}

Tóth, C ^{[1
]}

Esarey, E ^{[1
]}

Schroeder, CB ^{[1
]}

Leemans, WP ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

ADVANCED ACCELERATOR CONCEPTS | 2004年 / 737卷

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An injection scheme for a laser wakefield accelerator that employs a counterpropagating laser (colliding with the drive laser pulse, used to generate a plasma wake) is discussed. The threshold laser intensity for electron injection into the wakefield was analyzed using a heuristic model based on phase-space island overlap. Analysis shows that the injection can be performed using modest counterpropagating laser intensity a(1) less than or equal to 0.5 for a drive laser intensity of a(0) similar or equal to 1.0. Preliminary experiments were preformed using a drive beam and colliding beam. Charge enhancement by the colliding pulse was observed. Increasing the signal-to-noise ratio by means of a preformed plasma channel is discussed.

引用

页码：901 / 906

页数：6

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