Cross-sectional study of periodic surface structures on gallium phosphide induced by ultrashort laser pulse irradiation

被引：56

作者：

Hsu, E. M. ^{[1
]}

Crawford, T. H. R. ^{[1
]}

Maunders, C. ^{[2
]}

Botton, G. A. ^{[2
]}

Haugen, H. K. ^{[1
,3
]}

机构：

[1] McMaster Univ, Dept Engn Phys, Hamilton, ON L8S 4L7, Canada

[2] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada

[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4L7, Canada

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 22期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1063/1.2936865

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present cross-sectional transmission electron microscopy studies of laser induced periodic surface structures (LIPSS) formed on gallium phosphide after irradiation with ultrashort laser pulses with a pulse duration of 150 fs and centered at a wavelength of 800 nm. LIPSS with spatial periods (similar to 165 nm) substantially smaller than the incident wavelength are found to have vertical profiles as high as similar to 960 nm measured from the crest to the trough. The present observations provide important insights into the formation mechanisms of subwavelength LIPSS. (C) 2008 American Institute of Physics.

引用

页数：3

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