2001•Unpublished venueRequires access

UV photorefractive effect in Na+-doped lithium niobate crystals

Haijun Qiao, Jingjun Xu, Yongfa Kong, Qian Sun, Guangyin Zhang

Abstract

We studied the UV photorefractive effect and other optical properties of Na+-doped lithium niobate crystals. The behavior of the photorefractive resistance in Na+-doped lithium niobate crystals was found to be quite different from that in lithium niobate crystals doped with other well known optical-damage resistant metal ions, such as Mg2+, Zn2+, In3+ etc. It is also found that not only the defect structures but also the ratio of [Li]/[Nb] in our samples was changed by doping with Na+ ions. We theoretically analysed our experimental results, based on the Li-vacancy model.

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Key concepts: Photorefractive effect, Lithium niobate, Doping, Materials science, Lithium (medication), Ion, Vacancy defect, Optics