Growth of single crystal with a gradient of concentration of impurities by the Czochralski method using additional liquid charging

Er- and Yb-doped congruent LiNbO 3 (CLN) single crystals and Cr 3+- and Mg 2+-doped stoichiometric LiNbO 3 (SLN) single crystals were grown by the Czochralski method using additional liquid charging. Changes in the absorption spectra of the transitions 2F 7/2→ 2F 5/2 in Yb 3+ ions and 4I 15/2→ 2H 11...

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Bibliographic Details
Published in:Journal of crystal growth 2009-02, Vol.311 (4), p.1190-1194
Main Authors: Galutskiy, V.V., Vatlina, M.I., Stroganova, E.V.
Format: Article
Language:English
Subjects:
A1. Doping
A1. Growth models
A2. Gradient freeze technique
A2. Growth from the melt
B1. Niobates
B1. Oxides
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Summary:Er- and Yb-doped congruent LiNbO 3 (CLN) single crystals and Cr 3+- and Mg 2+-doped stoichiometric LiNbO 3 (SLN) single crystals were grown by the Czochralski method using additional liquid charging. Changes in the absorption spectra of the transitions 2F 7/2→ 2F 5/2 in Yb 3+ ions and 4I 15/2→ 2H 11/2 in Er 3+ ions along the length of a single-crystal plate correlate with a specific gradient of concentration of Yb 3+ and Er 3+ ions in the crystal. The correlation of the absorption spectra of the optical centers of Cr 3+ ions in stoichiometric LiNbO 3 single crystals with the content of magnesium along the length of the crystal is reported.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2008.11.059