Enhanced parametric pulse amplification in a comparable-mass plasma affected by charge state

Enhanced parametric pulse amplification in a comparable-mass plasma affected by charge state
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受电荷状态影响的同等质量等离子体中的增强参数脉冲放大

DOI:
10.1088/1361-6587/ab98df
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发表时间:
2020-06
影响因子:
2.2
通讯作者:
Xiao C. Z.
Xiao C. Z.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Chen Y.;Zheng C. Y.;Liu Z. J.;Cao L. H.;Feng Q. S.;Xiao C. Z.

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通过简化的理论模型和粒子模拟,在同等质量的等离子体中考虑电荷态,得到了增强的受激布里渊散射和受激拉曼散射。与以前的正负电子等离子体研究相比,我们给出了任意质量比(β=Me/mi)和荷电状态(Z=Zi,Ze=1)的等离子体波更一般的色散关系。此外,从动力学分析来看,离子-体模是布里渊放大的主要原因。在βZ=1型和β=1型等离子体中,随着Z的增大,受激布里渊散射产生的种子激光脉冲放大强度增大,前者是由动力学效应引起的,后者是由于不稳定性增长速率较高所致。我们的结果将在带电状态为Z > 1的等质量等离子体,如C60−/C60+,C602+,C603+的脉冲放大中有潜在的应用。
Enhanced stimulated Brillouin scattering and stimulated Raman scattering are shown in comparable-mass plasma by considering charge state through a simplified theoretical model and particle-in-cell simulations. We present a more general dispersion relation of plasma wave with arbitrary mass ratio (β=me/mi) and charge state (Z=Zi,Ze=1) compared to the previous electron–positron plasma study. Further, the ion-bulk mode is responsible for Brillouin amplification from kinetic analysis. Higher intensities of seed laser pulse amplification through stimulated Brillouin scattering are observed in βZ = 1 type plasmas and β = 1 type plasmas as Z increases; the former is caused by kinetic effects, while the latter is due to the higher growth rates of instability. Our results will have potential application in pulse amplification in the comparable-mass plasmas with charge state Z > 1, such as plasma of C60−/C60+,C602+,C603+ .
DOI: 10.1103/physreve.47.604
发表时间: 1993-01-01
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DOI: 10.1063/1.5096850
发表时间: 2019-06
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影响因子: --
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