Spectral-Luminescent Properties of Yttrium–Magnesium Pentaborate Crystals Co-Doped with Er3+ and Yb3+статья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2021 г.
Аннотация:The spectral-luminescent properties of Er3+,Yb3+:YMgB5O10 were investigated. The spectra of the cross section of absorption and stimulated emission in polarized light were determined. The lifetimes of the erbium 4I13/2 and ytterbium 2F5/2 energy levels were measured. The Yb3+ → Er3+ energy transfer efficiency was estimated. Within the framework of the conventional Judd–Ofelt theory the strengths of absorption and emission transitions were calculated, which made it possible to determine the lifetime of the Er3+ excited energy levels as well as the luminescence branching ratios.