Improved photorefractive time response in ferroelectric tungsten bronze crystals

Author

Clark, William W., III ; Miller, Mary J. ; Wood, Gary L. ; Mott, Andrew G. ; Sharp, Edward J. ; Salamo, Gregory J. ; Monson, Brian D. ; Neurgaonkar, Ratnakar R.

Author_Institution

USA CECOM Center for Night Vision & Electro-opt., Fort Belvoir, VA, USA

fYear

1990

fDate

6-8 Jun 1990

Firstpage

495

Lastpage

498

Abstract

Recent results which show several ways to improve the photorefractive time response in strontium barium niobate and barium strontium potassium sodium niobate tungsten bronze crystals are presented. The techniques used were thermal, applied fields, self-generated internal fields, and focusing. Orders-of-magnitude improvements in the time response were demonstrated for beam fanning, self-pumped phase conjugation, and double phase conjugation

Keywords

barium compounds; ferroelectric materials; optical phase conjugation; photorefractive effect; BaNbO₃; beam fanning; double phase conjugation; ferroelectric; focusing; photorefractive time response; self-generated internal fields; self-pumped phase conjugation; tungsten bronze crystals; Barium; Crystals; Delay; Ferroelectric materials; Light scattering; Niobium compounds; Optical scattering; Photorefractive materials; Time factors; Tungsten;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on

Conference_Location

Urbana-Champaign, IL

Print_ISBN

0-7803-0190-0

Type

conf

DOI

10.1109/ISAF.1990.200298

Filename

200298