论文标题
Brillouin散射的激光与磁化过度血浆相互作用的粒子中的粒子观测
Particle-In-Cell observations of Brillouin scattering for laser interacting with magnetized overdense plasma
论文作者
论文摘要
已经进行了使用Osiris-4.0的一个维颗粒模拟，以研究激光电磁脉冲与过度密度磁化等离子体靶标的相互作用。已经选择了沿激光传播方向的外部磁场。该几何形状支持血浆中右（R）和左（L）圆极化电磁波的传播。当激光脉冲频率落入L和/或R波的分散曲线的通过带中时，允许激光脉冲在血浆内传播。选择应用的外部磁场的强度作为参数，以确保激光频率位于适当的通过带中。事实证明，对于入射激光的所有可能极化，涉及散射电磁波和静电模式的参数过程。由于布里鲁因背部散射过程，参数过程已被确定为那样。
One dimensional Particle-in-cell simulations using OSIRIS-4.0 has been conducted to study the interaction of a laser electromagnetic pulse with an overdense magnetized plasma target. The external magnetic field has been chosen to be directed along the laser propagation direction. This geometry supports the propagation of right (R) and left (L) circularly polarised electromagnetic waves in the plasma. The laser pulse is allowed to propagate inside the plasma when its frequency falls in the pass band of the dispersion curves of L and/or R waves. The strength of the applied external magnetic field is chosen as a parameter to ensure that the laser frequency lies in the appropriate pass band. It is demonstrated that for all possible polarization of the incident laser, parametric process involving a scattered Electromagnetic wave and an electrostatic mode occur. The parametric process has been identified as that due to the Brillouin back scattering process.
