激光烧蚀Cu产生等离子体的连续辐射研究  

Mechanism of the Continuum Radiation in Pulsed Laser Ablation of Metal Cu

作　　者：黄庆举 方尔梯[2] 

机构地区：[1]临沂师专物理系 [2]华东理工大学化学物理研究室

出　　处：《激光与红外》1999年第4期205-208,共4页Laser & Infrared

基　　金：国家自然科学基金

摘　　要：通过对脉冲Ｎｄ∶ＹＡＧ激光烧蚀金属Ｃｕ过程中的烧蚀靶和收集板上电荷的时间分辩测量，分析了烧蚀过程中电子与离子从烧蚀靶表面的发射特征。结合连续辐射强度的时空分布，讨论了激光诱导等离子体连续辐射的产生机理，认为连续辐射是以电子的轫致辐射为主要机制。By time-resolved measurement of charge in ablation target and collector the emission characters of electron and ion produced by pulsed Nd∶YAG laser ablation of metal Cu is investigated.The emission characters of election and ion is investigated,and combining the time-resolved of the charge with time-resolved intensity distribution of the continuum emission,Bremsstrahlung of electron is the primary mechanism of the continuum.

关 键 词：激光等离子体 连续辐射 金属Cu 激光烧蚀 

分 类 号：TN24[电子电信—物理电子学]