Investigation on the growth and structure of Fe-doped near-stoichiometric LiNbO3 crystal |
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| Authors: | T. Zhang B. Wang S. Q. Fang Y. Q. Zhao F. R. Ling Y. H. Xu |
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| Affiliation: | (1) Electro-Optics Technology Center, Harbin Institute of Technology, Harbin, 150001, People's Republic of China |
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| Abstract: | The Fe-doped near-stoichiometric LiNbO3 crystal has been grown from the Li-rich melt by Czochralski method. The UV-Vis absorption spectra, IR transmittance spectra and X-ray diffraction were measured and used to study the defect structure of the crystal. Compared with that of congruent Fe:LiNbO3, in near-stoichiometric Fe:LiNbO3, the lattice parameter reduces, the basal absorption edge shifts towards shorter wavelength, and the OH stretching vibration absorption band shifts towards the lower wavenumber side (3466 cm–1) in the Fe-doped near-stoichiometric LiNbO3. |
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