Title :
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
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;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363086
