Diffractive properties of liquid crystal composite gratings

Author

Butler, J.j. ; Malcuit, M.S.

Author_Institution

Dept. of Phys., Lehigh Univ., Bethlehem, PA, USA

fYear

1999

fDate

28-28 May 1999

Firstpage

498

Lastpage

499

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEO.1999.834502

Filename

834502