Concerning the electromagnetic radiation spectrum of a hot plasma with Langmuir turbulence in a magnetic field

被引:2
|
作者
Tirsky, VV [1 ]
Ledenev, VG
Tomozov, VM
机构
[1] SD RAS, Inst Laser Phys, Irkutsk, Russia
[2] SD RAS, Inst Solar Terr Phys, Irkutsk 664033, Russia
来源
PHYSICA SCRIPTA | 2001年 / 64卷 / 04期
关键词
Langmuir plasmons;
D O I
10.1238/Physica.Regular.064a00353
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider the process of generation of electromagnetic waves as a consequence of the merging of two Langmuir plasmons. The case of a hot plasma in a magnetic field is investigated. It is shown that under such conditions the frequency of Langmuir plasmons can vary over the range from 0.8 to 1.1 of the Langmuir frequency of electrons. The spectrum and polarization of electromagnetic radiation are analyzed. It is shown that allowance for the thermal motion of plasma particles under the conditions involved permits electromagnetic waves in the range from 1.6 to 2.2 of the Langmuir frequency of electrons to be generated. The degree of circular polarization of the radiation can reach 50% even in the case of an isotropic spectrum of Langmuir turbulence.
引用
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页码:353 / 359
页数:7
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