Filamentation instability of ultra-intense linearly polarized laser pulse in electron-positron plasmas

Hu Qianglin; Xiao Guilan; Yu Xiaoguang; Luo Xiaobing

doi:10.3788/HPLPB201426.012005

Volume 26 Issue 01

Jan. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(01): 012005

Liu Wufeng, Huang Jijiang, Qiao Weimin, et al. Spot scanning control system for heavy ion therapy[J]. High Power Laser and Particle Beams, 2014, 26: 015105. doi: 10.3788/HPLPB201426.015105

Citation:

Hu Qianglin, Xiao Guilan, Yu Xiaoguang, et al. Filamentation instability of ultra-intense linearly polarized laser pulse in electron-positron plasmas[J]. High Power Laser and Particle Beams, 2014, 26: 012005. doi: 10.3788/HPLPB201426.012005

Liu Wufeng, Huang Jijiang, Qiao Weimin, et al. Spot scanning control system for heavy ion therapy[J]. High Power Laser and Particle Beams, 2014, 26: 015105. doi: 10.3788/HPLPB201426.015105

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Filamentation instability of ultra-intense linearly polarized laser pulse in electron-positron plasmas

doi: 10.3788/HPLPB201426.012005

1.
School of Mathematics and Physics,Jinggangshan University,Ji’an 343009,China;
2.
Library,Jinggangshan University,Ji’an 343009,China

Received Date: 2013-04-12
Rev Recd Date: 2013-10-06
Publish Date: 2014-01-15

Abstract

Abstract

Based on the wave equation of ultra-intense linearly polarized laser pulse propagating in electron-positron plasmas, the filamentation instability was investigated. The nonlinear dispersion relation and the growth rate of instability were derived. The effects of temperature and laser intensity on the growth rate were analyzed. The results show that in an electron-positron plasma, the intensity of the filamentation instability is mainly determined by the competition between the nonlinearity in the interaction and the relativistic light ponderomotive driven density responses.
- electron-positron plasmas,
- linearly polarized laser,
- wave equation,
- dispersion relation,
- filamentation instability

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