Growth of large microcones in steel under multipulsed Nd:YAG laser irradiation

被引：33
作者：
Dolgaev, S. I.
Fernandez-Pradas, J. M.
Morenza, J. L.
Serra, P.
Shafeev, G. A.
机构：
[1] Univ Barcelona, Dept Appl Phys & Opt, E-08028 Barcelona, Spain
[2] AM Prokhorov Gen Phys Inst, Wave Res Ctr, Moscow 119991, Russia
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 83卷 / 03期
关键词：
D O I：
10.1007/s00339-006-3562-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the growth of conical microstructure arrays on a stainless steel substrate under multi-pulsed Nd:YAG laser irradiation (wavelength of 1.064 mu m, pulse duration of 300 ns, repetition rate of 5 kHz) at atmospheric air pressure. The average period of microcones is 70 mu m, and they protrude 50-60 mu m above the substrate. At an air pressure of 1 Pa, the well-defined conical shape is lost and the resulting microstructure shows a smaller period and height. At 10(-3) Pa, only small protrusions separated by about 5 mu m are observed. The different mechanisms involved in the growth of conical microstructures are discussed.
引用
收藏
页码：417 / 420
页数：4
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