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.
出处
《激光与红外》
CAS
CSCD
北大核心
1999年第4期205-208,共4页
Laser & Infrared
基金
国家自然科学基金
关键词
激光等离子体
连续辐射
金属Cu
激光烧蚀
laser induced plasma,continuum emission,time-resolved spectra.metal Cu.
