Published May 15, 1992
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Journal Article
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Characterization of a new photorefractive material: Kl-yLyT1-xNx
- Creators
- Agranat, Aharon
- Hofmeister, Rudy
- Yariv, Amnon
Chicago
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Abstract
We report the growth and characterization of a new photorefractive material, potassium lithium tantalate niobate (KLTN). A KLTN crystal doped with copper is demonstrated to yield high diffraction efficiency of photorefractive gratings in the paraelectric phase. Voltage-controllable index gratings with n, = 8.5 x 10^-5 were achieved, which yielded diffraction efficiencies of 75% in a 2.9-mm-thick sample. In addition, diffraction was observed in the paraelectric phase without an applied field. This effect is attributed to a growth-induced strain field.
Additional Information
© 1992 Optical Society of America Received January 15, 1992 This research is supported by the U.S. Army Research Office.Files
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- Eprint ID
- 2884
- Resolver ID
- CaltechAUTHORS:AGRol92
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