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Increased photorefractive sensitivity in double-doped KTa1−xNbxO3:Fe,Ti

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Abstract

Double-doped KTN:Fe,Ti exhibits increased photorefractive sensitivity compared with single-doped KTN:Fe and KTN:Ti. Absorption and photoconductivity measurements correlate the increase with an increased concentration of Fe in the reduced Fe2+ valence state and to an increased fraction of Fe incorporated into the crystal from the of flux.

© 1993 Optical Society of America

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