Abstract

Zn:Mn:Fe:LiNbO3 crystals were prepared by Czochralski technique. Its microstructure was measured and analyzed by UV-Vis absorption spectra. The optical damage resistance of Zn:Mn:Fe:LiNbO3 crystals was characterized by the transmitted beam pattern distortion method. It increases remarkably when the concentration of ZnO is over a threshold concentration. Its value in Zn(7.0 mol%):Mn:Fe:LiNbO3 crystal is about three orders of magnitude higher that in the Mn:Fe:LiNbO3 crystal. The dependence of the defects on the optical damage resistance was discussed. The non-volatile holographic storage was realized in all crystals, and the sensitivity of the Zn(7.0 mol%):Mn:Fe:LiNbO3 crystal is much higher than that of others. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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