The filamentation instability of nonparaxial laser beam inside magnetized plasma

被引：4

作者：

Hassan, Munther B. ^{[1
]}

Abd-Ali, Ibtisam Jaafer ^{[1
]}

Soary, Ahmed Obaid ^{[1
]}

机构：

[1] Univ Kufa, Dept Phys, Fac Sci, POB 21, Kufa, Najaf, Iraq

来源：

RESULTS IN PHYSICS | 2019年 / 14卷

关键词：

Filamentation instability; Plasma density; Nonparaxial ray; Relativistic nonlinearity; HARMONIC-GENERATION;

D O I：

10.1016/j.rinp.2019.102386

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The filamentation instability (self-focusing) of laser beam propagating through magnetized plasma is occurring under the effect of nonlinear relativistic force. Taking into account the nonparaxial ray approximation, the laser beam of initial intensity (I similar to 10(19) W/cm(2)) is interacting with collisionless plasma to excite a positive lens that is leading to self-focus of the laser beam. The longitudinal static magnetic field is playing a significant role for increasing the self-focusing behavior of laser beam. The numerical results demonstrated that the self-focusing of the nonparaxial laser beam was lower than that of the paraxial laser beam.

引用

页数：4

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