Abstract

A series of ZrO2-doped Ru:Fe:LiNbO3 crystals with various Li composition were grown by conventional Czochralski technique. The OH absorption spectra were measured, and the Lorentzian fitting was employed to analyze the defect structures. The photorefractive properties in these crystals were investigated as a function of Li/Nb ratios. The recording sensitivity of Li-enriched Zr:Ru:Fe:liNbO3 crystal was 1.70cm/J, and the diffraction efficiency was as high as 44.3%, while this crystal could withstand a laser intensity of 3.4×104W/cm2 at 476 nm irradiation. Experimental results definitely showed that Zr:Ru:Fe:LiNbO3 crystals were promising blue photorefraction materials for holographic volume storage.

© 2012 Optical Society of America

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