Deep drilling of metals by femtosecond laser pulses

被引:1
|
作者
G. Kamlage
T. Bauer
A. Ostendorf
B.N. Chichkov
机构
[1] Laser Zentrum Hannover e.V.,
[2] Hollerithallee 8,undefined
[3] 30419 Hannover,undefined
[4] Germany,undefined
来源
Applied Physics A | 2003年 / 77卷
关键词
PACS: 42.62.Cf; 42.65.Re; 52.38.Mf;
D O I
暂无
中图分类号
学科分类号
摘要
Results of recent investigations on deep drilling of metals by femtosecond laser pulses are reported. At high laser fluences, well above the ablation threshold, femtosecond lasers can drill deep, high-quality holes in metals without any post-processing or special gas environment. It is shown that for high-quality drilling of metals, the following processes are important: (1) laser-induced optical breakdown of air containing metal vapor and small metal particles (debris) generated by multi-pulse femtosecond laser ablation, (2) transformation of laser pulses into light filaments, and (3) low-fluence finishing.
引用
收藏
页码:307 / 310
页数:3
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