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短脉冲强激光在等离子体中的稳定传播与许多现象,如:激光等离子体加速器、相干短波长辐射源以及ICF中的快点火等许多问题,都有着直接的联系.如何使短脉冲强激光在等离子体中稳定传播及提高其传播长度成为人们关注的焦点问题之一.实现短脉冲强激光在等离子体中传播时形成光波导的方式主要有两种,即相对论自聚焦和等离子体通道口.相对论自聚焦的机理在于,强激光驱动下的等离子体中的电子做相
The stable propagation of short pulse intense laser in plasma is directly related to many phenomena such as laser plasma accelerator, coherent short wavelength radiation source and fast ignition in ICF, etc. How to make short pulse intense laser in It is one of the most important problems that people pay attention to the stable propagation and the propagation length in the plasma.There are mainly two ways to realize the optical waveguide when the short pulse intense laser propagates in the plasma: the relativistic self-focusing and the plasma channel. The mechanism of relativity self-focusing lies in that the electrons in plasma driven by intense laser do phase