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
收藏
页码：94 / 97
页数：4
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