Optical damage resistance of Ce:Fe:LiNbO3 crystals with various Li/Nb ratios |
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| Authors: | Zhaopeng Xu Yongzhi Ben Ying Han Yan Zhao |
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| Institution: | College of Information Science and Engineering, State Key Lab Metastable Material Science Technology, Yanshan University, Qinhuangdao 066004, PR China |
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| Abstract: | Ce:Fe:LiNbO3 crystals were grown by the Czochralski technique with various ratios of Li/Nb = 0.94, 1.05, 1.20 and 1.38 in the melt. Their UV–Vis absorption spectra were measured in order to investigate their defect structures and their optical damage resistance was characterized by the photoinduced birefringence change and transmission facual distortion method. The optical damage resistance of Ce:Fe:LiNbO3 crystals improves with the Li/Nb ratio increases. The dependence of the optical damage resistance on the defect structure of Ce:Fe:LiNbO3 crystals is discussed in detail. |
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