3 January 2005 Photorefractive effect of double doped Ce:Co:KNSBN crystal
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The materials ratio is compounded followed by the molecular formula Ba0.5Sr1.5K0.5Na0.5Nb5O15. Doping 0.05 wt% CeO2 and 0.03 wt% Co2O3 in KNSBN, Ce:Co:KNSBN crystal was grown by Czochralski technique adopting SiMo heater furnace. The exponential gain coefficient, diffraction efficiency and response time of Ce:Co:KNSBN crystal were measured through two-beam couple light path. The phase conjugation reflect efficiency and response time of Ce:Co:KNSBN and Cu:SBN crystals were measured by four-wave mixing light path. The holographic associative storage were established by using Ce:Co:KNSBN crystal as recording apparatus and Cu:SBN crystal as phase conjugation lens. Addressing was operated by 75% and 50% images and the associative storage reappearing images are clear, complete and noise was small. The photo-refractive effects of Ce:Co:KNSBN crystal are more excellent than KNSBN crystal.
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Rui Wang, Rui Wang, Yuheng Xu, Yuheng Xu, Xinrong Liu, Xinrong Liu, } "Photorefractive effect of double doped Ce:Co:KNSBN crystal", Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); doi: 10.1117/12.574169; https://doi.org/10.1117/12.574169

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