Backscattered supercontinuum emission from high-intensity laser-plasma interactions

被引：48

作者：

Ting, A ^{[1
]}

Krushelnick, K ^{[1
]}

Burris, HR ^{[1
]}

Fisher, A ^{[1
]}

Manka, C ^{[1
]}

Moore, CI ^{[1
]}

机构：

[1] CORNELL UNIV,PLASMA STUDIES LAB,ITHACA,NY 14853

来源：

OPTICS LETTERS | 1996年 / 21卷 / 15期

关键词：

D O I：

10.1364/OL.21.001096

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We performed high-intensity subpicosecond laser-plasma interaction experiments to examine nonlinear scattering mechanisms in underdense plasmas. At incident laser intensities of 2 x 10(18) W/cm(2) the stimulated-Raman-backscattered spectrum exhibited an extremely broad, supercontinuumlike structure (Delta omega/omega(0) > 1) extending from similar to 500 to >1200 nm (limited only by detector sensitivity). Large-amplitude modulations in the spectrum of the backscattered light were measured and are attributed to an interaction of the stimulated-Raman-scattered radiation with ion plasma waves. (C) 1996 Optical Society of America

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页码：1096 / 1098

页数：3

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