Rate dependence of short-pulse laser ablation of metals in air and vacuum

被引：0
|
作者：
A.E. Wynne
B.C. Stuart
机构：
[1] Lawrence Livermore National Laboratory,
[2] P.O. Box 808,undefined
[3] L-477,undefined
[4] Livermore,undefined
[5] CA 94550,undefined
[6] USA,undefined
来源：
Applied Physics A | 2003年 / 76卷
关键词：
PACS: 79.20.Ds; 81.05.Bx; 89.20.Bb;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ablation rates of aluminum and stainless steel are studied as a function of fluence, hole depth, pulse duration and ambient pressure (air vs vacuum). We find a weak rate dependence on pulse duration from 150 fs to 500 ps, and a strong rate dependence on hole depth due to surface roughness. Machining in air plays an important role in deep holes, but has a weaker influence on initial surface ablation rates. Oxidation greatly reduces drilling rates for deep holes in aluminum.
引用
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页码：373 / 378
页数：5
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