Phototunable sub-wavelength grating and 3D photonic crystal infiltrated with photosensitive nonlinear liquid crystal

Author

Shishido, A. ; Divliansky, I.B. ; Nishimura, S. ; Egan, G.L. ; Wood, M.V. ; Min-Yi Shih ; Iam Choon Khoo ; Mallouk, K.E. ; Mayer, T.S.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

2001

fDate

11-11 May 2001

Firstpage

85

Lastpage

86

Abstract

Summary form only given. Nematic liquid crystals (NLC) possess very broadband birefringence and transparency [from 400 nm to 20 /spl mu/m], and extraordinarily large optical nonlinearity. Conventional methods of aligning NLCs employ surfactant and rubbed polymer coating on the cell windows. In this presentation, we demonstrate that similar aligning action may also be engendered by surface relief [1D and 2D] gratings inscribed on the glass windows. Furthermore, these cells exhibit all-optical diffraction capability.

Keywords

diffraction gratings; molecular orientation; nematic liquid crystals; nonlinear optics; optical tuning; photonic band gap; refractive index; 3D photonic crystal; aligning action; all-optical diffraction capability; colloidal crystal; glass windows; intensity dependent refractive index; nematic liquid crystals; nonlinear diffraction element; photosensitive nonlinear liquid crystal; phototunable subwavelength grating; surface relief gratings; transmission spectrum; Birefringence; Glass; Gratings; Liquid crystal polymers; Liquid crystals; Optical diffraction; Optical polymers; Photonic crystals; Polymer films; Windows;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947508

Filename

947508