Generation of low-frequency electromagnetic waves by spectrally broad intense laser pulses in a plasma

被引：6

作者：

Tsintsadze, LN ^{[1
]}

Tajima, T

Nishikawa, K

Koga, JK

Nakagawa, K

Kishimoto, Y

机构：

[1] JAERI, Adv Photon Res Ctr, Kyoto, Japan

[2] Univ Texas, Dept Phys, Austin, TX 78712 USA

[3] Kinki Univ, Dept Elect Engn & Comp Sci, Higashiosaka, Osaka 577, Japan

[4] JAERI, Naka Fus Res Estab, Tokai, Ibaraki, Japan

[5] Georgian Acad Sci, Inst Phys, Tbilisi 77, Georgia

来源：

PHYSICA SCRIPTA | 2000年 / T84卷

关键词：

D O I：

10.1238/Physica.Topical.084a00094

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new mechanism for the emission of low-frequency electromagnetic (EM) waves, including the generation of a quasistatic magnetic field, by a relativistically intense laser pulse with a wide spectrum is presented. The emission is due to modulational and filamentational instabilities of the photon gas in a plasma. The generation of the magnetic field is associated with a significant change in the laser pulse shape during the propagation. This process is identified in our 2D particle-in-cell (PIC) simulations with a high intensity (10(19) < I < 10(20) W/cm(2)) laser pulse.

引用

页码：94 / 97

页数：4

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