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A series of congruent crystals Zn:Ce:Cu:LiNbO 3 crystals doped with Zn(0,3,5,7mol%) were grown by using Czochralski method. OH − vibrational band and fundamental absorption edge were used to deduce the defect structure. Photorefractive properties were measured by two-wave coupling and light induced scattering experiments. It was found that the response and erasure time shorten with...
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