Abstract
In this paper experimental studies of nonvolatile photorefractive holographic recording in Ce:Cu:LiNbO 3 crystals doped with Sc(0,1,2, 3 mol %) were carried out. The Sc:Ce:Cu:LiNbO 3 crystals were grown by the Czochralski method and oxidized in Nb 2O 5 powders. The nonvolatile holographic recording in Sc:Ce:Cu:LiNbO 3 crystals was realized by the two-photon fixed method. We found that the recording time of Sc:Ce:Cu:LiNbO 3 crystal became shorter with the increase of Sc doping concentration, especially doping with Sc(3 mol%) , which exceeds the so-called threshold, and there was little loss of nonvolatile diffraction efficiencies between Sc( 3 mol %):Ce:Cu:LiNbO 3 and Ce:Cu:LiNbO 3 crystals.
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