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Growth and photorefractive properties of Ce:Fe:LiNbO3 crystals with various [Li]/[Nb] ratios

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Abstract

Ce:Fe:LiNbO3 crystals with various [Li]/[Nb] ratios were grown by the Czochralski method from melts having compositions varying between 48.6-58mol% Li2O. The crystal structures were analyzed by the UV-Vis spectra and IR spectra. The photorefractive properties of Ce:Fe:LiNbO3 crystals were experimentally studied by using two-beam coupling. The results of the two-wave coupling experiments showed that, with the ratios of [Li]/[Nb] increasing, the diffraction efficiency decrease, but the response speed, photorefractive sensitivity and dynamic range increase.

© 2005 Optical Society of America

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