Open AccessTwo-dimensional periodic structure induced by single-beam femtosecond laser pulses irradiating titanium
Author(s) -
Yongguang Huang,
Shibing Liu,
Wei Li,
Yuanxing Liu,
Wei Yang
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.020756
Subject(s) - femtosecond , optics , laser , materials science , azimuth , titanium , irradiation , beam (structure) , laser beams , physics , nuclear physics , metallurgy
A novel two-dimensional (2-D) periodic structure on the ablated hole wall is formed by using the method of single-beam femtosecond laser pulses irradiating a titanium target. This 2-D structure on the ablated surface, after consecutive irradiation of 10000 pulses, presents different spatial periods which characters a 1500 nm period along the hole wall in the vertical direction and a 400 nm period in the azimuthal direction of the hole. The reported experimental results can be well interpreted by a prophetic theoretical model of Bonch-Bruevich (A. M. Bonch-Bruevich et al., Opt. Eng. 31, 718 (1992)).