Abstract
A series of LiNbO 3:Fe:Mg:Zr single crystals with various Li/Nb ratios in the melt were grown by the Czochralski method in the air. The ultraviolet–visible and infrared transmittance spectra were measured to investigate the defect structures of these crystals. A new vibration peak of 3502 cm −1 was observed in infrared transmittance spectra. The sequence of substitution was concluded according to the spectroscopic characterization. The light-induced scattering of LiNbO 3:Fe:Mg:Zr crystals was characterized quantitatively via the incident exposure energy, and the relationship between the defect structures and light-induced scattering was discussed.
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