Determination of the Center Composition of Gradient-Activated Lithium Niobate Crystals Doped with Magnesium and Chromium
E. V. Stroganova, V. V. Galutskii, K. V. Sudarikov, D. A. Rasseikin, N. A. Yakovenko
a:2:{s:4:"TEXT";s:73:"Kuban State University, ul. Stavropol’skaya 149, Krasnodar, 350040 Russia";s:4:"TYPE";s:4:"text";}
Keywords: градиентно активированные кристаллы, оптические центры, дефектная структура, пороговые концентрации примеси, gradient-activated crystals, optical centers, defect structure, threshold dopant concentrations
Pages: 167-173
Abstract
Investigations of the defect structure of a gradient-activated stoichiometric LiNbO3:Mg2+, Cr3+ crystal, in which the chromium concentration has a constant value of 0.1 at. % along the crystal growth axis, and the magnesium concentration changes smoothly from 5.5 to 2.0 al. %. The threshold concentration of Mg2+ ions (2.35 at. %) in these crystals with a concentration width of change in the center composition (Cr optical center and its nearest neighbors) of 0.09 at. % Mg2+ ions is established.
DOI: http://dx.doi.org/10.3103/S8756699016020096
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