Abstract
Luminescence spectra of gradient-activated LiNbO3:Yb, Er crystals with predefined concentration profiles of the optical centers are studied in different spectral regions. The process of electronic excitation energy transfer in the Yb3+–Er3+ system inside the LiNbO3 matrix is calculated and dependences of the quantum efficiency of the up-conversion processes for the green and red luminescences of erbium ions on the time of excitation energy deactivation are obtained.
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Original Russian Text © E.V. Stroganova, N.N. Nalbantov, V.V. Galutsky, N.A. Yakovenko, 2016, published in Optika i Spektroskopiya, 2016, Vol. 121, No. 6, pp. 922–928.
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Stroganova, E.V., Nalbantov, N.N., Galutsky, V.V. et al. A study of the quantum efficiency of multichannel relaxation in LiNbO3:Yb, Er crystals. Opt. Spectrosc. 121, 856–861 (2016). https://doi.org/10.1134/S0030400X16120262
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DOI: https://doi.org/10.1134/S0030400X16120262