Title :
Tunable nonlinear liquid-crystal photonic crystals
Author :
Khoo, I.C. ; Zhang, Yana ; Diaz, A. ; Ding, J. ; Divliansky, I.B. ; Holliday, Kito ; Mayer, T.S. ; Crespi, V. ; Scrymgeour, D. ; Gopalan, V.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Summary form only given. Nematic liquid crystals (NLC) possess very broadband (400 nm to 20 μm) birefringence and transparency, and extraordinarily large optical nonlinearity. In this paper, we report a novel approach of directly writing permanent (but electrically switchable) 2-D holographic gratings on pure liquid crystalline structures fabricated with well established alignment surfaces. Our theoretical analysis shows that such structures exhibit tunable bandgap, and will also enable super-prism beam steering effects.
Keywords :
beam steering; holographic gratings; liquid crystal devices; molecular orientation; nematic liquid crystals; nonlinear optics; optical tuning; photonic crystals; alignment surfaces; birefringence; large optical nonlinearity; liquid crystalline structures; nematic liquid crystals; permanent electrically switchable 2-D holographic gratings; super-prism beam steering effects; transparency; tunable bandgap; tunable nonlinear liquid-crystal photonic crystals; Birefringence; Crystallization; Gratings; Holographic optical components; Holography; Liquid crystals; Nonlinear optics; Photonic band gap; Photonic crystals; Writing;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1159338
