约束靶面黑漆涂层对激光冲击波的影响  

Effect of Black Paint on Laser Induced Shock Waves on Surface of Confined Targets

作　　者：朱文辉[1,2,3] 李志勇[1,2,3] 周光泉[1,2,3] 刘朝晖[1,2,3] 

机构地区：[1]中国科学技术大学力学与机械工程系 [2]国防科学技术大学应用物理系 [3]株洲工学院基础物理教研室

出　　处：《强激光与粒子束》1997年第3期458-462,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金;国家863激光技术领域青年科学基金

摘　　要：介绍了约束靶表面的黑漆涂层对激光冲击波的影响。激光功率密度１０９Ｗ／ｃｍ２量级，脉宽３３ｎｓ，波长１．０６μｍ。靶材选用两种不同厚度的铜和铝，靶表面用有机玻璃约束。通过对冲击波压力的直接测量发现，涂层不仅可以增加激光冲击波压力，而且还影响冲击波的演化过程。比较有无涂层的靶面ＳＥＭ照片发现，黑漆涂层能有效地保护激光辐照表面，使之不受激光烧蚀。The effects of black paint on laser induced shock waves in the aluminum and copper targets are introduced when the targets are irradiated by laser pulses of 33ns duration, at laser power density around 10 9W/cm 2,and wavelength 1.06μm. The direct shock pressure measurements show that the black paint can increase the shock pressure amplitude and affect the shock evolution characteristics as well. The black paint can also protect target surfaces from laser ablation by comparing the SEM photographs of the target surfaces with that without black paint.

关 键 词：激光冲击波 黑漆层 压力 激光烧蚀 激光热处理 

分 类 号：TG156.99[金属学及工艺—热处理]