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Inne
Spectroscopic studies and dynamics of Nd3+ ions in RbY2Cl7 single crystals. Part I. Analysis of site-selective excitation and emission spectra.
Autorzy
Rok wydania
2002
Czasopismo
Numer woluminu
277
Strony
341-359
DOI
10.1016/S0301-0104(02)00324-5
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Single crystals of Nd3+:RbY2Cl7 were grown by the Bridgman–Stockbarger method. The host crystal contains two slightly inequivalent Y3+ ions, each with an approximate C2v site symmetry. The crystal-field energy levels of the Nd3+ ion doped in the two slightly inequivalent sites of the host crystal have been measured by optical absorption spectroscopy as well as by laser-selective excitation and emission experiments. As many as 151 and 156 energy levels have been ascribed to the Nd(1) and Nd(2) sites, respectively. Emission transients of a number of the levels were determined. Strong fluorescence and upconversion transitions were recorded and some mechanisms involving excited state absorption and energy transfer between Nd3+ ions were proposed as explanatory for the results of the present investigations.
Adres publiczny
https://doi.org/10.1016/S0301-0104(02)00324-5
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