| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1795158 | Journal of Crystal Growth | 2007 | 6 Pages |
Abstract
In: Eu: Fe: LiNbO3 crystals were grown by the Czochralski technique with various ratios of Li/Nb =0.946, 1.051, 1.200, 1.382 in the melt. The crystal composition and defect structure were analyzed by the UV-visible and IR spectroscopy and X-ray diffration. The results showed that increasing the Li/Nb ratio can decrease the In3+ doping threshold concentration of In: Eu: Fe: LiNbO3 crystals. In two-wave coupling experiments, the writing and erasure time constants, maximum diffraction efficiency, photorefractive sensitivity, photoconduction, photovoltaic field and space-charge field of the crystals were measured and calculated. The dependence of the photorefractive properties on the defect structure of In: Eu: Fe: LiNbO3 crystals were discussed.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Liang Sun, Fengyun Guo, Qiang Lv, Hongtao Li, Wei Cai, Yuheng Xu, Liancheng Zhao,