物理学报Issue(8)：085207-1-085207-8,8.DOI:10.7498/aps.63.085207
一维动理学数值模拟激光与等离子体的相互作用
Study of laser plasma interactions using one-dimensional particle-in-cell co de in kinetic regime
邹长林 1叶文华 2卢新培1
作者信息
- 1. 华中科技大学，强电磁与新技术国家重点实验室，武汉 430074
- 2. 北京应用物理与计算数学研究所，北京 100088
- 折叠
摘要
Abstract
Stimulated Raman scatting (SRS), which is one of the parametric processes of laser-plasma interactions, is examined by an explicit, electromagnetic, relativistic kinetic particle-in-cell code in one dimension. The code algorithm and implementation details are discussed. It is found that kinetic effects are important to SRS instability. Time-averaged reflectivity onsets at threshold intensity, and saturates at higher intensity. Backward SRS bursts in sub-picosecond, periodically. Kinetic ions initially delay the growth of SRS. Electron trapping results in the SRS bursts. The saturation of SRS results from the nonlinear frequency shift of Langmuir wave. Work is underway to add binary Coulomb collision to parallelize it, and to extend the code to 2D3V.关键词
粒子模拟/激光与等离子体相互作用/受激拉曼散射Key words
particle-in-cell simulation/laser-plasma interactions/stimulated Raman scattering引用本文复制引用
邹长林,叶文华,卢新培..一维动理学数值模拟激光与等离子体的相互作用[J].物理学报,2014,(8):085207-1-085207-8,8.
