Title :
Stimulated scattering at mW power in thin nematic film for application in the visible-near IR spectral regime
Author :
Khoo, I.C. ; Liang, Y. ; Shih, X. ; Wood, M.V. ; Chen, P.H. ; Diaz, A. ; Ding, J.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Summary form only given. 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-near infrared regime.
Keywords :
birefringence; diffraction gratings; liquid films; nematic liquid crystals; refractive index; stimulated Brillouin scattering; NLC; birefringence; bulk grating formation; crystalline axis reorientation; large refractive index changes; mW power stimulated scattering; nematic liquid crystals; nematic thin film; visible-near IR spectral regime; Birefringence; Crystallization; Laser transitions; Liquid crystals; Optical films; Optical refraction; Optical scattering; Optical variables control; Refractive index; Stimulated emission;
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
DOI :
10.1109/CLEO.2001.947777
