脉冲Nd:YAG激光烧蚀Cu产生等离子体总辐射的时空分辨研究  

Time and spatial resolved studies of all plasma emission spectra produced by pulsed Nd:YAG laser ablation of metal Cu

作　　者：黄庆举[1,2] 方尔梯[1,2] 邓尚民 

机构地区：[1]山东工程学院数理系 [2]华东理工大学化学物理研究室

出　　处：《原子与分子物理学报》1999年第3期329-333,共5页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金

摘　　要：通过时空分辨的光谱测量技术，测定了在环境气压下，Ｎｄ：ＹＡＧ脉冲激光烧蚀金属Ｃｕ产生等离子体的总辐射随时间与空间的强度分布，研究了烧蚀环境气压对总辐射强度的影响，提出电子碰撞与复合激发模型。Time and Spatial resolved measurments of all plasma emission produced by pulsed Nd:YAG laser ablation of metal Cu in different backing gas are repored. The effects of different backing gas pressure over the range of 13 Pa to 101 3 kPa on all plasma emission intensity is studied. The results are qualitatively explained using a simple model based on plasma emission arising from electron collion energy transfer and recombination of the electron and ion in the plasma.

关 键 词：ND:YAG激光 激光烧蚀溅射 等离子体辐射 铜 

分 类 号：O644.18[理学—物理化学]