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Laser conoscopy of LiNbO3:Mg single crystals

  • Methods of Materials Properties Analysis
  • Published:
Inorganic Materials: Applied Research Aims and scope

Abstract

Optical homogeneity and subtle features of the structural distortions in a series of lithium niobate (LiNbO3) single crystals of congruent composition doped with Mg2+ (0.01–5.5 mol %) are analyzed by laser conoscopy using a He-Ne laser (λ = 632.8 nm) with a power below 1 mW. Standard and distorted conoscopic patterns are observed for LiNbO3:Mg (0.01–1.5 mol %) and LiNbO3:Mg (3.0–5.5 mol %) samples, respectively. It is shown that the structural imperfection and optical anomalies reach a maximum at concentrations of about 3 mol % Mg2+ and are due to the inhomogeneity of Mg2+ incorporation into the structure at concentrations ≥3 mol %. The latter can be caused by the change in the mechanism of Mg2+ incorporation into the crystal structure at Mg2+ concentrations ≥3 mol %.

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Authors and Affiliations

  1. Far Eastern State University of Communications, Khabarovsk, Russia

    O. Yu. Pikul’

  2. Tananaev Institute of Chemistry and Technology of Rare Earth Elements and Mineral Raw Materials, Cola Scientific Center, Russian Academy of Sciences, Apatity, Murmansk oblast, Russia

    N. V. Sidorov, O. V. Makarova & M. N. Palatnikov

Authors
  1. O. Yu. Pikul’
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  2. N. V. Sidorov
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  3. O. V. Makarova
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  4. M. N. Palatnikov
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Correspondence to O. Yu. Pikul’.

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Original Russian Text © O.Yu. Pikul’, N.V. Sidorov, O.V. Makarova, M.N. Palatnikov, 2013, published in Perspektivnye Materialy, 2013, No. 12, pp. 72–81.

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Pikul’, O.Y., Sidorov, N.V., Makarova, O.V. et al. Laser conoscopy of LiNbO3:Mg single crystals. Inorg. Mater. Appl. Res. 5, 189–197 (2014). https://doi.org/10.1134/S2075113314020166

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  • DOI: https://doi.org/10.1134/S2075113314020166

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