计算物理 ›› 1985, Vol. 2 ›› Issue (4): 454-461.

• 论文 • 上一篇    下一篇

强激光引起等离子体参量加热的粒子模拟研究

刘成海2, 张家泰1, 张书贵1, 余淑珍1, 梁华湘1, 许林宝1   

  1. 1. 原子能研究所;
    2. 应用物理与计算数学研究所
  • 收稿日期:1984-12-15 出版日期:1985-12-25 发布日期:1985-12-25

PARTICLE SIMULATION RESEARCH OF PLASMA PARAMETRIC HEATING CAUSED BY STRONG LASER

Liu Cheng-hai2, Zhang Jia-tai1, Zhang Shu-guiYu1, Shu-Zhen1, Liang Hua-xiang1, Xu Lin-bao1   

  1. 1. Institute of Applied physics and Computational Mathematics, Beijing;
    2. Institute of Atomic Energy
  • Received:1984-12-15 Online:1985-12-25 Published:1985-12-25

摘要: 我们利用一维半粒子云网格法作数值模拟、研究了频率略高于等离子体频率(ω0=1.1ωv)的强激光电场引起的参量加热。结果表明,离子声衰变不稳定性和振荡双流不稳定性同时被激发,非线性饱和呈现出较为细致的结构,等离子体被强烈加热,饱和后Langmuir湍流谱遵从一个典型的幂规律。

Abstract: We have studied parametric heating caused by electric field of strong laser with frequence which is a little higher than plasma frequence(w0=1.1Wp)by use one and half dimensional CIC scheme. Results shown that both the ion-acoustic instabilities and the oscillation two-stream instabilities are stimulated together, nonlinear saturation show some fine structures, plasma is heated strongly and tur-blent spectra after saturetion fllows a typical power law.