HYBRID PARTICLE-IN-CELL SIMULATIONS OF STIMULATED BRILLOUIN SCATTERING INCLUDING ION-ION COLLISIONS
HYBRID PARTICLE-IN-CELL SIMULATIONS OF STIMULATED BRILLOUIN SCATTERING INCLUDING ION-ION COLLISIONS
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DOI：
10.1103/physrevlett.79.83
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发表时间：
1997-07
影响因子：
8.6
通讯作者：
P. Rambo;S. Wilks;W. Kruer
中科院分区：
文献类型：
--
作者：
P. Rambo;S. Wilks;W. Kruer
结果表明，离子-离子碰撞对激光在高Z值等离子体中的受激布里渊散射有重要影响。我们报告的第一个混合粒子在细胞模拟受激布里渊散射，包括这些碰撞。在非线性状态下，碰撞可以通过保持离子分布函数的负斜率来发挥至关重要的作用，这极大地扭曲了，甚至在无碰撞模拟中的离子波相速度附近发生了扭曲。还说明了其他碰撞效应。{版权} {美国物理学会}
It is shown that ion-ion collisions can have a very important effect on stimulated Brillouin scattering of laser light in high-{ital Z} plasmas, such as those near the wall of a laser-irradiated hohlraum. We report the first hybrid particle-in-cell simulations of stimulated Brillouin scattering including these collisions. Collisions can play a vital role in the nonlinear state by maintaining a negative slope to the ion distribution function, which greatly distorts and even flattens near the ion wave phase velocity in collisionless simulations. Other collisional effects are also illustrated. {copyright} {ital 1997} {ital The American Physical Society}