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Defect Complexes and Optical Properties of Doubly Doped Lithium Niobate Crystals

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Inorganic Materials Aims and scope

Abstract

The effect of defect complexes related to the presence of protons on the optical properties of LiNbO3:Y(0.24):Mg(0.63) and LiNbO3:Gd(0.25):Mg(0.75) (wt %) crystals has been studied using IR absorption spectroscopy, photoinduced light scattering, and laser conoscopy. The results indicate that the absorption bands at frequencies of 3483 and 3486 cm–1 correspond to vibrations of a V -Li –OH− defect complex. To a Mg +Li - Mg 3-Nb –OH−defect complex in the LiNbO3:Gd(0.25):Mg(0.75) crystal correspond bands at frequencies of 3526 and 3535 cm–1. In the LiNbO3:Y(0.24):Mg(0.63) crystal, we have detected an anomalous opening of the speckle structure of the photoinduced light scattering indicatrix.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center Federal Research Center, Russian Academy of Sciences, Akademgorodok 26a, Apatity, Murmansk oblast, 184209, Russia

    N. V. Sidorov, L. A. Bobreva, N. A. Teplyakova & M. N. Palatnikov

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  1. N. V. Sidorov
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  2. L. A. Bobreva
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  3. N. A. Teplyakova
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  4. M. N. Palatnikov
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Correspondence to N. V. Sidorov.

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Original Russian Text © N.V. Sidorov, L.A. Bobreva, N.A. Teplyakova, M.N. Palatnikov, 2018, published in Neorganicheskie Materialy, 2018, Vol. 54, No. 10, pp. 1066–1070.

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Sidorov, N.V., Bobreva, L.A., Teplyakova, N.A. et al. Defect Complexes and Optical Properties of Doubly Doped Lithium Niobate Crystals. Inorg Mater 54, 1009–1012 (2018). https://doi.org/10.1134/S0020168518100151

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  • DOI: https://doi.org/10.1134/S0020168518100151

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