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

Volume

2

fYear

2002

fDate

10-14 Nov. 2002

Firstpage

381

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE

ISSN

1092-8081

Print_ISBN

0-7803-7500-9

Type

conf

DOI

10.1109/LEOS.2002.1159338

Filename

1159338