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Nonlinear interaction of intense laser beam with dense plasma

机译:强脉冲强度激光束的非线性相互作用

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摘要

We studied the nonlinear evolution of an amplitude-modulated envelop soliton formed in a dense plasma when a laser beam interacts with it. The employment of our newly developed technique, homotopy-assisted symbolic simulation, has been instrumental in the study of the nature and formation of envelope solitons and their dependence on various parameters. The different orders of homotopy perturbation generate a convergent series solution for such nonlinear coupled partial differential equations (PDE). Our technique bypasses the rigorous analytical derivation of coupled PDE without a loss of information. The methodology is very novel and holds promise for application in models that explain experimental observations. The results will be beneficial in interpreting various dense laser plasma interactions.
机译:研究了激光束与稠密等离子体相互作用时形成的振幅调制包络孤子的非线性演化。利用我们新开发的技术,同伦辅助符号模拟,有助于研究包络孤子的性质和形成,以及它们对各种参数的依赖性。不同阶同伦摄动产生了这类非线性耦合偏微分方程(PDE)的收敛级数解。我们的技术绕过了耦合偏微分方程的严格分析推导,而不会丢失信息。该方法非常新颖,有望应用于解释实验观察结果的模型中。研究结果将有助于解释各种稠密激光等离子体相互作用。

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