Open AccessFemtosecond laser direct writing of large-area two-dimensional metallic photonic crystal structures on tungsten surfaces
Author(s) -
Hongzhen Qiao,
Jianjun Yang,
Fei Wang,
Yang Yang,
Julong Sun
Publication year - 2015
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.23.026617
Subject(s) - femtosecond , materials science , optics , laser , nanophotonics , tungsten , photonic crystal , grating , photonics , metamaterial , diffraction grating , optoelectronics , thermal , physics , meteorology , metallurgy
Metallic photonic crystals (MPCs) and metamaterials operating in the visible spectrum are required for high-temperature nanophotonics, but they are often difficult to construct. This study demonstrates a new approach to directly write two-dimensional (2D) MPCs on tungsten surfaces through the cylindrical focusing of two collinear femtosecond laser beams with certain temporal delays and orthogonal linear polarizations. Results are physically attributed to the laser-induced transient crossed temperature grating patterns and tempo-spatial thermal correlations. Optical properties of the fabricated MPCs are characterized. Such a simple and efficient technique can be used to fabricate large-area, 2D microstructures on metal surfaces for potential applications.