Article ID Journal Published Year Pages File Type
5399262 Journal of Luminescence 2015 24 Pages PDF
Abstract
Europium single doped potassium lutetium tungstate Eu3+:KLu(WO4)2 single crystals have been grown with the top seeded solution growth slow cooling method. Their absorption spectra are studied in detail for principal light polarizations, E||Np, Nm and Ng at room and low temperatures. The absorption oscillator strengths parameters are calculated by means of the theory of f-f transition intensities for systems with anomalously strong configuration interaction and by Judd-Ofelt theory. The Ωt (t=2, 4, 6) intensity parameters, and the {Odk, Ock, Δd, Δc1 and Δc2} (k=1, 2, 3) ASCI parameters are calculated. The radiative transition rates AR, radiative lifetimes τR, and fluorescent branching ratios βR associated with 5D0-7FJ transitions of Eu3+ were determined. The calculated decay times are discussed and compared with experimental values.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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