Crystallography Reports

, Volume 52, Issue 4, pp 691–696

Optical properties of lanthanum-gallium tantalate at different growth and post-growth treatment conditions

Authors

  • O. A. Buzanov
    • OAO Fomos Materials
  • E. V. Zabelina
    • Moscow State Institute of Steel and Alloys
  • N. S. Kozlova
    • Moscow State Institute of Steel and Alloys
Physical Properties of Crystals

DOI: 10.1134/S1063774507040177

Cite this article as:
Buzanov, O.A., Zabelina, E.V. & Kozlova, N.S. Crystallogr. Rep. (2007) 52: 691. doi:10.1134/S1063774507040177

Abstract

Optical properties of lanthanum-gallium tantalate crystals grown in different atmospheres (argon, argon-oxygen mixture, air) have been investigated. Optical transmission spectra in the ranges 0.185–0.800 and 2.0–10.0 μm have been recorded. The range of lanthanum gallium tantalate transparency is established to be 0.26–7.6 μm. The main refractive indices no and ne have been measured and their inhomogeneity and dispersion have been investigated in the range 0.40–0.70 μm. It is shown that the growth atmosphere significantly affects the optical properties of the crystals studied.

PACS numbers

78.20.Ci
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Copyright information

© Pleiades Publishing, Inc. 2007