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Photorefractive effect in BaTiO3: microscopic origins

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Abstract

We have used a number of experimental techniques to identify the photorefractive species in commercial samples of BaTiO3. We find that Fe impurities (in the Fe2+ and Fe3+ states) are the predominant photorefractive species. Techniques for optimizing the photorefractive properties of BaTiO3 are discussed.

© 1986 Optical Society of America

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