The method of the laser pulse self-compression in the process of Raman scattering in a plasma created by a counter-propagating ionized pulse is considered. The sharpness of the ionization front ensures the formation of an output pulse close to the $\pi$-pulse solution with a sharp leading edge. The dependence of the gain increment on the transverse wave number leads to the formation of a smooth phase front of the output pulse. The energy efficiency in the output pulse reaches 28% of the total pump energy. A study of the influence of quasistatic inhomogeneities showed only a slight slowdown in the process even in a plasma with 8% density modulation.

中文翻译：

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由于等离子噪声的拉曼放大导致的激光脉冲压缩

考虑在由反向传播的电离脉冲产生的等离子体中的拉曼散射过程中的激光脉冲自压缩方法。电离前沿的锋利度可确保形成接近于$\pi$-具有尖锐前沿的脉冲解决方案。增益增量对横波数的依赖性导致形成输出脉冲的平滑相位前沿。输出脉冲中的能量效率达到总泵能的28％。对准静态不均匀性的影响的研究表明，即使在密度调制为8％的等离子体中，该过程也只会稍有减慢。