Open AccessGrating-assisted generation of regular two-dimensional multicolored arrays in a tellurite glass
Author(s) -
Hang Zhang,
Fangteng Zhang,
Yongze Yu,
Xi Du,
Guoping Dong,
Jianrong Qiu
Publication year - 2014
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.22.0a1278
Subject(s) - materials science , optics , grating , femtosecond , laser , refractive index , diffraction efficiency , diffraction grating , diffraction , breakup , optoelectronics , physics , psychology , psychoanalysis
A grating structure was inscribed in a tellurite glass after irradiation with high-repetition rate femtosecond laser pulses. High diffraction efficiency was obtained due to the large refractive index change, which was caused by the precipitation of Te crystals in the laser modified region. Two-dimensional multicolored arrays were generated by cascaded four-wave mixing (CFWM) together with the prefabricated grating structure, which showed much more superior than those induced by beam breakup.