Spot-size dependence of the ablation threshold in dielectrics for femtosecond laser pulses

被引：81
|
作者：
Martin, S [1 ]
Hertwig, A [1 ]
Lenzner, M [1 ]
Krüger, J [1 ]
Kautek, W [1 ]
机构：
[1] Bundesantalt Materialforsch & Prufung, Lab Dunnschichttechnol, D-12205 Berlin, Germany
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2003年 / 77卷 / 07期
关键词：
D O I：
10.1007/s00339-003-2213-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The multi-pulse ablation threshold of barium borosilicate glass was measured using 30-fs pulses of a high repetition rate (I kHz) laser system. The threshold fluence was found to decrease with increasing beam radius ranging from 20 to 400 mum. Two existing models are applied by considering thermal accumulation and point defects, respectively.
引用
收藏
页码：883 / 884
页数：2
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