Open AccessLarge area uniform nanostructures fabricated by direct femtosecond laser ablation
Author(s) -
Min Huang,
Fuli Zhao,
Ya Cheng,
Ning Xu,
Zhizhan Xu
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.019354
Subject(s) - materials science , femtosecond , laser , optics , nanostructure , optoelectronics , grating , irradiation , nano , laser ablation , ablation , nanotechnology , composite material , physics , engineering , aerospace engineering , nuclear physics
An approach for fabricating large area uniform nanostructures by direct femtosecond (fs) laser ablation is presented. By the simple scanning technique with appropriate irradiation conditions, arbitrary size of uniform, complanate nano-grating, nano-particle, and nano-square structures can be produced on wide bandgap materials as well as graphite. The feature sizes of the formed nanostructures, which can be tuned in a wide range by varying the irradiation wavelength, is about 200 nm with 800 nm fs laser irradiation. The physical properties of the nano-structured surfaces are changed greatly, especially the optical property, which is demonstrated by the extraordinary enhancement of light transmission of the treated area. This technique is efficient, universal, and environmentally friendly, which exhibits great potential for applications in photoelectron devices.