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Proceedings Paper

The growth and photorefractive effect of codoped Ce:Cu:BGO crystals
Author(s): Wei Zheng; Fengchun Wang; Yuheng Xu
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Paper Abstract

The photorefractive BGO crystal shows rapid respond (second level) when applied by external electric field, but it has weak photorefractive effect. CeO2 and CuO co-doped BGO (Bi12GeO20) crystal has been grown by Czochralski method for the first time. The diffraction efficiency and respond time of Ce:Cu:BGO and BGO crystals are determined with two-wave-coupling technology. The phase conjugate reflectivity and respond time are also determined in four-wave-fixing optical path. The results indicate that diffraction efficiency and phase conjugate reflectivity of Ce:Cu:BGO is 30% higher than those of non-doped BGO and the response time exhibits in second level with 6kv/cm2 external electric field. The improvement mechanism of photorefractive effect of Ce:Cu:BGO crystal is investigated systematically.

Paper Details

Date Published: 7 February 2005
PDF: 5 pages
Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.574911
Show Author Affiliations
Wei Zheng, Harbin Univ. of Science and Technology (China)
Fengchun Wang, Harbin Univ. of Science and Technology (China)
Yuheng Xu, Harbin Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 5636:
Holography, Diffractive Optics, and Applications II
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu; Byoungho Lee, Editor(s)

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