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Proceedings Paper

Crystal Growth, Processing, And Characterization Of Photorefractive BaTiO3
Author(s): Barry A Wechsler; Marvin B Klein; Daniel Rytz
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Paper Abstract

The development of practical devices utilizing the photorefractive effect in BaTiO3 depends upon the availability of single crystals with improved properties. In order to achieve this goal, we are pursuing a program involving crystal growth, characterization, and modeling. High quality, nominally undoped BaTiO3 crystals have been prepared by the top-seeded solution growth method and have photorefractive properties similar to those of commercial crystals. Models of the photorefractive effect suggest that improvements in the response time may be achieved by heating the crystal in a reducing atmosphere to convert to electron photoconductivity. Experiments with a commercial crystal whose major transition metal impurity was Fe resulted in a factor of 10 improvement in its response time, but at the expense of increased dark conductivity. Other approaches to reduce the response time are discussed.

Paper Details

Date Published: 9 March 1987
PDF: 11 pages
Proc. SPIE 0681, Laser and Nonlinear Optical Materials, (9 March 1987); doi: 10.1117/12.939623
Show Author Affiliations
Barry A Wechsler, Hughes Research Laboratories (United States)
Marvin B Klein, Hughes Research Laboratories (United States)
Daniel Rytz, Hughes Research Laboratories (United States)

Published in SPIE Proceedings Vol. 0681:
Laser and Nonlinear Optical Materials
Larry G. DeShazer, Editor(s)

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