Growth and spectroscopic characterization of Zr:Fe:LiNbO3 crystals with various Li/Nb ratios |
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| Authors: | Yexia Fan Chao Xu Shixing Xia Chengxiang Guan Liangcai Cao Qingsheng He Guofan Jin |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin University of Science and Technology, P.O. Box 317, Harbin 150040, PR China;2. School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, PR China;3. Department of Physics, Harbin Normal University, Harbin 150080, PR China;4. State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, PR China |
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| Abstract: | In this paper, Zr:Fe:LiNbO3 crystals with various Li/Nb ratios were grown by the Czochralski method from melts having compositions varying between 48.6 and 58 mol% Li2O. X-ray powder diffraction (XRD), inductively coupled plasma optical emission/mass spectrometry (ICP-OE/MS), ultraviolet–visible (UV–vis) absorption and the infrared (IR) spectrum were measured and are discussed in terms of the spectroscopic characterization. It was found that as the Li/Nb ratio increases in the melt, the Li/Nb ratio in the crystal also increases, the distribution coefficients of Fe and Zr ions decrease, the absorption edge shifts to a shorter wavelength, and the ZrO2 threshold concentration of the samples decreases. |
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| Keywords: | A1. Characterization A2. Czochralski method B1. Lithium niobate B2. Photo-refractive materials |
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