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Self-Pumped Phase Conjugation in the Red in Photorefractive Ba2-xSrxK1-yNayNb5O15 and SrxBa1-xNb2O6 with Cerium in 9-Fold Coordinated Sites

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Abstract

We report the first observation of self-pumping1 in Ba.5Sr1.5K.25Na.75Nb5O15 (BSKNN-III) and Sr.6Ba.4Nb2O6 (SBN) with Cerium in 9-fold coordinate sites. Phase-conjugate reflectivities on the order of 20% have been observed from both crystals along with relatively fast response times. The observations reported here were carried out at laser wavelengths of 647 nm and 676 nm.

© 1987 Optical Society of America

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