Abstract—

The article deals with interaction of an extraordinary laser wave of high amplitude with inhomogeneous plasma in a strong magnetic field in the vicinity of twice the upper-hybrid frequency. The analysis is carried out by means of numerical simulation based on the particle-in-cell (PIC) method. It is demonstrated that in this case, parametric resonance leads to a substantial heating of electrons. The results of analysis of spectra of the longitudinal field suggest that this kind of heating occurs due to nonlinear interaction of the upper-hybrid plasmons driven by the laser wave with electrostatic modes similar to the Bernstein ones in the linear approximation. The dependence of average energy of electrons gained in the course of heating on their initial temperature is investigated.

中文翻译：

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强磁场中高功率激光与等离子体的参量相互作用

摘要-

本文讨论了高振幅的非常规激光与不均匀等离子体在强上混合频率的两倍附近的强磁场中的相互作用。该分析是通过基于单元粒子（PIC）方法的数值模拟进行的。已经证明，在这种情况下，参量共振导致电子的大量加热。纵向场光谱的分析结果表明，这种加热是由于激光驱动的上混合等离子体激元与线性近似中与伯恩斯坦相似的静电模式的非线性相互作用而发生的。研究了在加热过程中获得的电子平均能量与其初始温度的关系。