超短脉冲激光烧蚀金属靶热分布的数值解与解析解  

Numerical solutions and analytical solutions of thermal distribution of ultrashort pulse laser ablation metal target

作　　者：陈安民[1] 高勋[1] 姜远飞[1] 丁大军[1] 刘航[1] 金明星[1] 

机构地区：[1]吉林大学原子与分子物理研究所,长春130012

出　　处：《原子与分子物理学报》2009年第4期683-687,共5页Journal of Atomic and Molecular Physics

基　　金：国家重大基础研究项目;国家自然科学基金项目(10534010)

摘　　要：研究了超短脉冲激光烧蚀靶材的整个过程,对描述超短脉烧蚀过程热行为的双温度方程进行了分析简化,得出了超快激光烧蚀金属材料的解析解.以铜靶材为例,对双温度模型的数值解与解析解做了对比分析,得到了靶材温度随时间和深度的变化规律,结果显示解析解的计算结果比较好的符合了数值解的计算结果.The whole ablation process of target heated by ultrafast pulsed lasers is studied in the paper. The double-temperature equation （DTE） was formatted simply, got the analytical solutions of the ultrafast laser ablation metallic materials. And copper targets as an example, a comparative analysis is done between the numerical solutions and the analytical solutions of the two-temperature model, have found the temperature distribution with the evolution of time and depth, the result showed that analytical solutions are in good agreement with the numerical solutions.

关 键 词：激光烧蚀 双温模型 电子温度 晶格温度 

分 类 号：O532[理学—等离子体物理]