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Suppression of auto-resonant stimulated Brillouin scattering in supersonic flowing plasmas by different forms of incident lasers
Chinese Physics B ( IF 1.7 ) Pub Date : 2020-08-27 , DOI: 10.1088/1674-1056/ab9c12
S S Ban 1 , Q Wang 1 , Z J Liu 2 , C Y Zheng 2 , X T He 1, 2
Affiliation  

In supersonic flowing plasmas, the auto-resonant behavior of ion acoustic waves driven by stimulated Brillouin backscattering is self-consistently investigated. A nature of absolute instability appears in the evolution of the stimulated Brillouin backscattering. By adopting certain form of incident lights combined by two perpendicular linear polarization lasers or polarization rotation lasers, the absolute instability is suppressed significantly. The suppression of auto-resonant stimulated Brillouin scattering is verified with the fully kinetic Vlasov code.

中文翻译:

不同形式的入射激光抑制超音速流动等离子体中自共振受激布里渊散射

在超声速流动等离子体中,对自激布里渊反向散射驱动的离子声波的自谐振行为进行了自洽研究。绝对布里渊的性质出现在受激布里渊散射的演化过程中。通过采用由两个垂直线性偏振激光器或偏振旋转激光器组合的某种形式的入射光,可以极大地抑制绝对不稳定性。完全动力学的Vlasov编码验证了对自共振受激布里渊散射的抑制。
更新日期:2020-08-31
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