强激光驱动冲击波特性研究  

Study of the properties of the shock wave induced by high-power laser

作　　者：刘丽[1] 王声波[1] 吴鸿兴[1] 郭大浩[1] 

机构地区：[1]中国科学技术大学强激光技术研究所,合肥230026

出　　处：《激光杂志》2006年第3期13-14,共2页Laser Journal

基　　金：安徽省光电子科学与技术重点实验室资助

摘　　要：描述了用于激光冲击强化中的激光驱动冲击波的产生、测量及在材料中的传播特性。讨论了激光功率密度的变化对冲击波峰值的影响。并对水作约束层时产生的等离子体环现象进行了解释。最后讨论了激光波长和脉冲宽度的变化对冲击波的峰值和持续时间的影响。We described the generation,measurement of the shock wave used in laser shock processing and its propagation in the target. The changes of peak pressure depending on the laser power density were studied, The generation of plasma ring at the surface of the target in the water- confinement was explained. The influence of the laser wavelength and pulse duration upon the maximum pressure and the pressure duration were discussed.

关 键 词：激光冲击强化 冲击波 约束层 压力 

分 类 号：TN249[电子电信—物理电子学]