학술논문
Novel permanent and electrically switchable diffraction gratings made of polymeric slides and nematic liquid crystal layers
Document Type
Conference
Author
Source
The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003. LEOS annual meeting conference proceedings Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE. 1:183-184 vol.1 2003
Subject
Language
ISSN
1092-8081
Abstract
This study proposes a novel technique in fabricating permanent switchable gratings in composite materials which are characterized by both lower scattering losses and lower driving electric fields in comparison with usual PDLC gratings. Such a technique exploits the interference pattern produced by two UV (cw) laser beams. Acting on a solution of highly mutually soluble pre-polymer and LC components sandwiched in a glass cell, the interference pattern yields a grating which is composed by a sequence of continuously aligned LC layers separated by isotropic polymer slides. This is the so called POLICRYPS (polymer-liquid crystal-polymer-slides) morphology obtained by a simple and low cost technique.