Periodic nanoripples in the surface and subsurface layers in ZnO irradiated by femtosecond laser pulses

被引：36
|
作者：
Jia, X. [1 ]
Jia, T. Q. [1 ]
Zhang, Y. [1 ]
Xiong, P. X. [1 ]
Feng, D. H. [1 ]
Sun, Z. R. [1 ]
Qiu, J. R. [2 ]
Xu, Z. Z. [2 ]
机构：
[1] E China Normal Univ, Dept Phys, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
[2] Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
来源：
OPTICS LETTERS | 2010年 / 35卷 / 08期
基金：
中国国家自然科学基金;
关键词：
DAMAGE;
D O I：
10.1364/OL.35.001248
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present the formation of periodic ripples in ZnO crystal irradiated by a wavelength-tunable femtosecond laser. The results indicate that in the surface thin layer, the periods change from 0.1 lambda to lambda with laser fluences and pulse numbers, and in the subsurface layer the periods are always lambda/2n, where n is the refractive index. The formation processes and mechanisms are also discussed. (C) 2010 Optical Society of America
引用
收藏
页码：1248 / 1250
页数：3
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