Open AccessFabrication of two-dimensional periodic nanostructures by two-beam interference of femtosecond pulses
Author(s) -
Tianqing Jia,
M. Baba,
Masayuki Suzuki,
R. A. Ganeev,
Hiroto Kuroda,
Jianrong Qiu,
Xinshun Wang,
Ruxin Li,
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.16.001874
Subject(s) - femtosecond , materials science , optics , nanostructure , interference (communication) , laser , beam (structure) , fabrication , optoelectronics , nanotechnology , physics , channel (broadcasting) , electrical engineering , engineering , medicine , alternative medicine , pathology
Two-dimensional periodic nanostructures on ZnO crystal surface were fabricated by two-beam interference of 790 nm femtosecond laser. The long period is, as usually reported, determined by the interference pattern of two laser beams. Surprisingly, there is another short periodic nanostructures with periods of 220-270 nm embedding in the long periodic structures. We studied the periods, orientation, and the evolution of the short periodic nanostructures, and found them analogous to the self-organized nanostructures induced by single fs laser beam.