Growth and photorefractive properties of Zr:Cu:Fe:LiNbO3 crystals with various Li/Nb ratios

Xiaoling Zhang; Xin Zhang; Jianqiang Tong; Jie Gao; Lijie Jin; Zhaopeng Xu

doi:10.1117/12.2181662

13 April 2015 Growth and photorefractive properties of Zr:Cu:Fe:LiNbO₃ crystals with various Li/Nb ratios

Xiaoling Zhang, Xin Zhang, Jianqiang Tong, Jie Gao, Lijie Jin, Zhaopeng Xu

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 95222I (2015) https://doi.org/10.1117/12.2181662
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

A series of Zr(1 mol%):Cu(0.1 mol%):Fe(0.03wt%)LiNbO₃ single crystals with various Li/Nb ratios having compositions varying between 48.6 and 58 mol% Li₂O in the melt were grown by the Czochralski method in the air. The OH⁻ transmittance spectra was investigated to characterize the structure defects of these crystals. The OH⁻ absorption peaks shift to longer wavelength as the [Li]/[Nb] ratio increases and an obvious absorption peak at 3468 cm^-1 was observed at the Li/Nb ratio of 1.05. The photorefractive properties of the crystals were experimentally studied using the two-wave coupling method. The results show that as the [Li]/[Nb] ratio increases, the holographic response time and the diffraction efficiency increase under the Li/Nb ratio of 1.2.

Citation Download Citation

Xiaoling Zhang, Xin Zhang, Jianqiang Tong, Jie Gao, Lijie Jin, and Zhaopeng Xu "Growth and photorefractive properties of Zr:Cu:Fe:LiNbO₃ crystals with various Li/Nb ratios", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 95222I (13 April 2015); https://doi.org/10.1117/12.2181662

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