Dynamics of subpicosecond laser ablation, examined by moments technique

被引:7
作者
Luk'yanchuk, BS [1 ]
Anisimov, SI [1 ]
Lu, YF [1 ]
机构
[1] Natl Univ Singapore, Data Storage Inst, Laser Microproc Lab, Singapore 119260, Singapore
来源
NONRESONANT LASER-MATTER INTERACTION (NLMI-10) | 2001年 / 4423卷
关键词
subpicosecond laser ablation; two-temperature model; moment's technique;
D O I
10.1117/12.431216
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The interaction of subpicosecond laser pulses with metals is studied theoretically using phenomenological two-temperature model. A semi-analytical approach to a quantitative analysis of electron and lattice temperatures is presented. Using the nonstationary averaging technique (moment's technique) the coupled system of nonlinear heat equations for electron and lattice temperatures is transformed into the set of four ordinary differential equations. Resulting system is convenient for the fast analysis of nonstationary laser heating and laser ablation with ultrashort laser pulses.
引用
收藏
页码:141 / 152
页数:12
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