SUBPICOSECOND, ELECTROMAGNETIC PULSES FROM INTENSE LASER-PLASMA INTERACTION

被引：674

作者：

HAMSTER, H ^{[1
]}

SULLIVAN, A ^{[1
]}

GORDON, S ^{[1
]}

WHITE, W ^{[1
]}

FALCONE, RW ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.71.2725

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Laser pulses with a power of 10(12) W and a duration of 10(-13) s were focused onto both gas and solid targets. Strong emission of pulsed radiation at terahertz frequencies was observed from the resulting plasmas. The most intense radiation was detected from solid density targets and was correlated with the emission of MeV x rays and electrons. Results indicate that radiative processes in such plasmas are driven by ponderomotively induced space charge fields in excess of 10(8) V/cm. This work constitutes the first direct observation of a laser-induced wake field.

引用

页码：2725 / 2728

页数：4

共 25 条

[1]

[Anonymous], 1975, CLASSICAL ELECTRODYN

[2]

Berger MJ., 1982, STOPPING POWERS RANG, VSecond

[3] ULTRAHIGH-GRADIENT ACCELERATION OF INJECTED ELECTRONS BY LASER-EXCITED RELATIVISTIC ELECTRON-PLASMA WAVES [J].