Application of Hybrid Polymer as Laser Devices Based on 2D Grating with Square Structure

Abstract

Two dimensional gratings have been fabricated by laser interference method on hybrid polymer films doped with 4-dicyanmethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-Pyran (DCM). The gel precursor of hybrid polymer was synthesized by sol-gel route using 3-(trimethoxysilyl)-propyl-methacrylate (TMSPMA). The film was exposed by laser interference of Nd-YAG laser yield square lattice of 2D-grating with periodicities 391 nm and 405 nm. The characteristic of lasing was investigated using strip-line excitation light of second harmonic generation (SHG) of Nd-YAG laser (λ = 532 nm). The lasing wavelengths are observed at (588 nm ± 2) and (606 nm ± 2 nm) for grating period of 391 nm and 405 nm, respectively. The spectral width of lasing is about 2 nm at pumping power 6.6 mJ/pulse.cm2
.