Stimulated scattering at mW power in thin nematic film for application in the visible-near IR spectral regime

Author

Khoo, I.C.

Author_Institution

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

Volume

1

fYear

2000

fDate

2000

Firstpage

318

Abstract

Nematic liquid crystals (NLC) are quite transparent and they possess large birefringence throughout the visible-infrared regime. Because of the easy susceptibility of the crystalline axis to reorientation by an optical field, it is relatively easy to induce large refractive index changes in NLC using low power lasers. In this paper, we report stimulated scattering and bulk grating formation in aligned nematic film with unprecedented low threshold, and illustrate how the process could easily be realized throughout the visible to near infrared regime

Keywords

diffraction gratings; light polarisation; liquid crystal devices; nematic liquid crystals; optical films; optical polarisers; stimulated scattering; 200 mum; aligned nematic film; bulk grating formation; crystalline axis; large birefringence; large refractive index changes; low power lasers; mW power; nematic liquid crystals; optical field; stimulated scattering; susceptibility; thin nematic film; transparent; visible-infrared regime; visible-near IR spectral regime; Birefringence; Crystallization; Laser transitions; Liquid crystals; Optical films; Optical refraction; Optical scattering; Optical variables control; Refractive index; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE

Conference_Location

Rio Grande

ISSN

1092-8081

Print_ISBN

0-7803-5947-X

Type

conf

DOI

10.1109/LEOS.2000.890806

Filename

890806