Nonvolatile photorefractive holographic recording in Sc:Ce:Cu:LiNbO3 |
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| Authors: | F. R. Ling B. Wang T. Geng S. Q. Fang W. Yuan D. D. Teng C. X. Guan |
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| Affiliation: | a Electro-Optics Technology Center, Harbin Institute of Technology, P.O. Box 1225, Harbin 150001, China;b Applied Physics Department, Harbin Normal University, Harbin 150008, China |
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| Abstract: | In this paper experimental studies of nonvolatile photorefractive holographic recording in Ce:Cu:LiNbO3 crystals doped with Sc(0,1,2,3 mol%) were carried out. The Sc:Ce:Cu:LiNbO3 crystals were grown by the Czochralski method and oxidized in Nb2O5 powders. The nonvolatile holographic recording in Sc:Ce:Cu:LiNbO3 crystals was realized by the two-photon fixed method. We found that the recording time of Sc:Ce:Cu:LiNbO3 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:LiNbO3 and Ce:Cu:LiNbO3 crystals. |
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| Keywords: | Sc:Ce:Cu:LiNbO3 crystal Two-photon fixed method Holographic recording |
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