开展了激光诱导等离子体屏蔽冲击波演化过程研究。利用光学阴影成像诊断技术,分析了纳秒激光透过玻璃聚焦在铝靶表面上分别产生的等离子体与冲击波碰撞的时间和空间演化过程。随着玻璃与铝靶间距增加,冲击波碰撞时间增加。研究结果表明,冲击波相互碰撞时本身并不发生相互作用,而是等离子体与冲击波发生作用,出现冲击波波前畸变甚至破碎现象,存在等离子体屏蔽冲击波过程,最后探讨分析了等离子体屏蔽冲击波物理机制。 A laser-induced plasma shielding shock wave evolution process has been studied. The temporal and spatial evolution of plasma collisions with shock waves generated by the nanosecond laser focusing on the surface of the aluminum target through the glass focalization was analyzed using the optical shadow imaging diagnostic technique. As the distance between the glass and the aluminum target increases, the impact time of the shock wave increases. The results show that the collision between the shock wave itself does not interact, but the plasma and the shock wave occurs, there shock wave front or even broken phenomenon, the existence of plasma shielding shock wave process, and finally discussed the plasma shielding shock wave physics mechanism .