Tunable and nonlinear 3-D photonic crystals of nano-liquid crystals droplets in polymer matrix

Author

Khoo, I.C. ; Williams, Yana ; Chan, Kan

Author_Institution

Pennsylvania State Univ., University Park, PA, USA

Volume

1

fYear

2004

fDate

7-11 Nov. 2004

Firstpage

13

Abstract

This study investigates tunable and nonlinear 3-D photonic crystals of nano-liquid crystal droplets in polymer matrix. A four-coherent UV laser beam set up generated by a compact beam splitting device is used in the fabrication of the photonic crystal structure. After employing a relatively short exposure, the resultant 3-D periodic structures of liquid crystals and optically cured polymer matrix exhibit very good optical quality with low scattering loss, and show high Bragg diffraction and selective angular reflection properties.

Keywords

drops; holographic gratings; laser materials processing; light diffraction; light reflection; light scattering; nanostructured materials; nonlinear optics; optical beam splitters; optical fabrication; optical losses; optical switches; optical tuning; photonic crystals; polymer dispersed liquid crystals; 3D photonic crystals; UV laser beam; compact beam splitting device; droplets; electronically switched PDLC; four-coherent laser beam; good optical quality; high Bragg diffraction; holographic writing; low scattering loss; nanoliquid crystals; nonlinear photonic crystal; optical fabrication; polymer matrix; selective angular reflection; tunable photonic crystal; Laser beams; Liquid crystal polymers; Nonlinear optics; Optical beam splitting; Optical device fabrication; Optical polymers; Optical scattering; Periodic structures; Photonic crystals; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE

Print_ISBN

0-7803-8557-8

Type

conf

DOI

10.1109/LEOS.2004.1363086

Filename

1363086