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Proceedings Paper

Growth and investigation of LiNbO3:MgO single crystals
Author(s): Dmitry Yu. Sugak; Andrej O. Matkovskii; Ivan M. Solskii; I. V. Stefanskii; Vladimir M. Gaba; Anatolij I. Mikhalevych; Vitaly V. Grabovski; Valentin I. Prokhorenko; B. N. Kopko; V. Ya. Oliinyk
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Paper Abstract

The technological procedure of the manufacturing of the LiNbO3 single crystals doped with 5 mol.% MgO is described in this paper. The results of the investigation of the crystal optical properties and optical homogeneity are presented. The refractive index dispersion in the 300 - 700 nm region and their temperature dependences in the 20 - 500 degree Celsius range are measured. The dispersion curve is approximated by the two oscillator Sellmeier formula. The data on the LiNbO3:MgO crystal optical resistance are presented. The phenomenon of optical damage in LiNbO3 (LN) restricts considerably the application of the crystals in devices that control powerful laser beam. Crystal doping by MgO suppresses photorefractive characteristics of LN and leads to considerable increase of the threshold of crystal optical damage. Hence it is of vital importance to receive optically homogeneous LiNbO3:MgO (LN - Mg) crystals of big size and to study their optical characteristics. The concentration dependence of MgO influence on optical characteristics is threshold like and the threshold concentration of MgO ranges within 5 - 7% mol according to the ratio of Li/Nb in the crystal.

Paper Details

Date Published: 29 April 1996
PDF: 8 pages
Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); doi: 10.1117/12.239216
Show Author Affiliations
Dmitry Yu. Sugak, R&D Institute of Materials (Ukraine)
Andrej O. Matkovskii, R&D Institute of Materials (Ukraine)
Ivan M. Solskii, R&D Institute of Materials (Ukraine)
I. V. Stefanskii, Lviv State Univ. (Ukraine)
Vladimir M. Gaba, State Univ. Lviv Polytechnic (Ukraine)
Anatolij I. Mikhalevych, R&D Institute of Materials (Ukraine)
Vitaly V. Grabovski, Institute of Semiconductor Physics (Ukraine)
Valentin I. Prokhorenko, Institute of Semiconductor Physics (Ukraine)
B. N. Kopko, R&D Institute of Materials (Ukraine)
V. Ya. Oliinyk, R&D Institute of Materials (Ukraine)

Published in SPIE Proceedings Vol. 2795:
Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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