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Nonvolatile two-color photorefractive holographic recording in In:Ce:Cu:LiNbO3

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In this paper we report experimental studies of nonvolatile photorefractive holographic recording in doping In(3mol%), which exceed the so-called threshold, in Ce:Cu:LiNbO3 crystals. The In:Ce:Cu:LiNbO3 crystal was grown by the Czochralski method and oxidized. The OH absorption band of In:Ce:Cu:LiNbO3 crystal is 3507 cm–1. The nonvolatile holographic recording in In:Ce:Cu:LiNbO3 crystal is realized by two-photon fixed method. From the experiment, we found that the recording time of In:Ce:Cu:LiNbO3 crystal is lower than that of Ce:Cu:LiNbO3 crystal and there are a little lose of nonvolatile diffraction efficiencies between In:Ce:Cu:LiNbO3 and Ce:Cu:LiNbO3 crystals. In this paper, the mechanism of OH absorption band shifting and two-photon fixed was discussed, too.

Document Type: Research Article


Affiliations: 1: Electro-Optics Technology Center, Harbin Institute of Technology, Harbin 150001, P.R.China 2: Applied Physics Department, Harbin Normal University, Harbin, 150008, P.R. China

Publication date: March 1, 2004

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