Formation of ring patterns surrounded by ripples by single-shot laser irradiation with ultrashort pulse width at the solid/liquid interface

被引:22
作者
Katayama, K [1 ]
Yonekubo, H [1 ]
Sawada, T [1 ]
机构
[1] Univ Tokyo, Grad Sch Frontier Sci, Chiba 2778561, Japan
关键词
D O I
10.1063/1.1582372
中图分类号
O59 [应用物理学];
学科分类号
摘要
A single pulse (pulse width: 200 fs) was irradiated onto a water/silicon interface. The processed surface had many ring patterns surrounded by sinusoidal patterns within the irradiated spot. The diameter of their rings ranged from 500 nm to 10 mum. It was proposed that the oscillation of a bubble at the interface emitted an acoustic wave around itself and that the melted silicon surface, deformed due to acoustic pressure, solidified instantaneously in the course of the propagation of the acoustic wave on the silicon surface. (C) 2003 American Institute of Physics.
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页码:4244 / 4246
页数:3
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