Analytical methods are used to study the properties of a wake wave excited by a relativistic laser pulse passing through a blurred boundary of a homogeneous plasma. It is found that on the plasma density plateau near its boundary, the wake wave is not regular and its phase velocity depends on the spatial coordinate. It is shown that the breaking of a wake wave is a threshold process in terms of the electron oscillation energy; the influence of the transition layer parameters on the process of wake wave breaking is determined.

中文翻译：

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激光脉冲在与半无限等离子体相互作用期间激发非线性尾波的破碎

分析方法用于研究由穿过均匀等离子体模糊边界的相对论激光脉冲激发的尾波的特性。发现在其边界附近的等离子体密度平台上，尾波是不规则的，其相速度取决于空间坐标。结果表明，就电子振荡能量而言，尾波的破裂是一个阈值过程；确定了过渡层参数对尾波破碎过程的影响。