All-optical self-induced polarization switching by two-wave mixing in nematic liquid crystalline films and waveguides-from visible to infrared

Author

Khoo, I.C. ; Ding, J.

Volume

2

fYear

2004

fDate

7-11 Nov. 2004

Firstpage

771

Abstract

Self-induced polarization switching phenomena in nematic liquid crystal films are studied using lasers from the visible to the infrared regime. A complete quantitative analysis of the steady state process and experimental confirmation of the stimulated orientational scattering in nematic liquid crystal where a weak scattered noise grows into a strong signal via some optical wave mixing effect is presented. The dependence of the conversion efficiency, oscillation threshold, intensity dependence and the dependence on the state of polarization of the input pump beam and other optical and liquid crystalline parameters are also presented.

Keywords

light polarisation; light scattering; multiwave mixing; nematic liquid crystals; optical films; optical pumping; optical switches; optical waveguides; all-optical self-induced polarization switching; conversion efficiency; intensity dependence; nematic liquid crystalline films; optical wave mixing effect; oscillation threshold; stimulated orientational scattering; two-wave mixing; waveguides; Crystallization; Liquid crystals; Liquid waveguides; Optical films; Optical mixing; Optical noise; Optical pumping; Optical scattering; Polarization; Stimulated emission;

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.2004.1363467

Filename

1363467