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

Author Affiliations +

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.

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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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