Modeling of femtosecond ablation of aluminum film with single laser pulses

被引：13

作者：

Mazhukin, A. V. ^{[1
]}

Mazhukin, V. I. ^{[1
]}

Demin, M. M. ^{[1
]}

机构：

[1] RAS, Inst Math Modeling, Moscow 125047, Russia

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

Modeling; Femtosecond; Ablation; Non-equilibrium; Phase transition;

D O I：

10.1016/j.apsusc.2010.11.154

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Detailed investigation of pulsed laser ablation dynamics is performed for aluminum target under action of 100 fs pulses with peak intensity 3.95x10(12) W/cm(2) and wavelength 0.8 mu m. Non-equilibrium two-temperature model with hydrodynamic Stephan problem was used for modeling. Explicit tracking of moving interphase boundaries permits exact determination of their velocity and amount of removed and evaporated material. Detailed ablation process is analyzed using the study of temperature, pressure and density evolution in the target. High phase front velocities (melting up to 5 km/s and evaporation up to 350 m/s) are caused by strong overheating of solid and liquid phases. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：5443 / 5446

页数：4

共 9 条

[1] Mechanisms of decomposition of metal during femtosecond laser ablation [J].