Title :
Diffractive properties of liquid crystal composite gratings
Author :
Butler, J.j. ; Malcuit, M.S.
Author_Institution :
Dept. of Phys., Lehigh Univ., Bethlehem, PA, USA
Abstract :
Summary form only given. We present the results of an experimental study of the diffractive properties of liquid-crystal-filled composite gratings. These gratings can be used as high contrast, electrically switchable, diffractive elements for the visible and near infrared. In the study we have found that the refractive index modulation and hence the diffraction efficiency is enhanced over what is theoretically predicted based on measurements of the diffractive properties of the grating before and after it is filled with the liquid crystal.
Keywords :
filled polymers; holographic gratings; light diffraction; nematic liquid crystals; optical fabrication; optical materials; optical modulation; optical polymers; refractive index; diffraction efficiency; diffractive properties; electrically switchable diffractive elements; gratings; high contrast electrically switchable diffractive elements; liquid crystal composite gratings; liquid-crystal-filled composite gratings; near infrared region; nematic liquid crystal; refractive index modulation; visible region; Crystalline materials; Diffraction gratings; Electrons; Extraterrestrial measurements; Liquid crystals; Mechanical factors; Optical materials; Optimized production technology; Synchrotrons; Vacuum technology;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834502
