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研制了激光等离子体二维相对论电磁粒子模拟程序(2DCIC)。追踪几万甚至百万个模拟粒子在外加激光场和自洽场中运动,自洽地计算电荷和电流密度,求解完全的Maxwel方程,电子的相对论运动方程和离子的牛顿运动方程,辅以灵活的诊断研究波-波,波-粒子相互作用的发生、发展和饱和的细节以及时间演化规律。激光可以正入射,也可以斜入射;等离子体可以是均匀密度,也可以具有密度梯度;为了节约机时,还发展了并行运算。物理模型参数可调,既适用于研究激光聚变等离子体相互作用,也适用于超短脉冲超强激光等离子体相互作用和其它等离子体问题。经过多次试算检验,对等离子体平衡态进行了计算研究,对于超短脉冲超强激光的传播也进行了初步模拟计算。
A two-dimensional laser relativistic electromagnetic particle simulation program (2DCIC) was developed. Tracing tens of thousands or even millions of simulated particles moving in an applied laser field and self-consistent field, calculating the charge and current density in a self-consistent manner, solving the complete Maxwell equation, the electron’s relativistic equation of motion and the ion’s Newton equation of motion, supplemented by a flexible The diagnostic study of wave-wave, wave-particle interaction occurs, the details of the development and saturation, as well as the evolution of time. The laser can either be normal incident or oblique incident; the plasma can be uniform or have a gradient of density; and in parallel to saving time, parallel computing has also been developed. Adjustable physical model parameters, both for the study of laser fusion plasma interaction, but also for ultrashort pulse super laser plasma interaction and other plasma problems. After several trial tests, the plasma equilibrium state has been calculated and studied. The propagation of super-short pulse superlattice laser has also been preliminarily simulated.