Growth and optical properties of Mg, Fe Co-doped LiTaO3 crystal |
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| Authors: | Shuangquan Fang |
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| Affiliation: | Electro-Optics Technology Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Mg, Fe double-doped LiTaO3 and LiNbO3 crystals have been grown by Czochralski method. The optical properties were measured by two-beam coupling experiments and transmitted facula distortion method. The results showed that the photorefractive response speed of Mg:Fe:LiTaO3 was about three times faster than that of Fe:LiTaO3, whereas the photo-damage resistance was two orders of magnitude higher than that of Fe:LiTaO3. In this paper, site occupation mechanism of impurities was also discussed to explain the high photo-damage resistance and fast response speed in Mg:Fe:LiTaO3 crystal. |
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| Keywords: | Mg:Fe:LiTaO3 crystal Exponential gain coefficient Diffraction efficiency Response speed Photo-damage resistance |
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