Abstract
The environment of Eu 3+ in zinc–thallium–tellurite glass of the molar composition 60TeO 2–30TlO 0.5–9.9ZnO–0.1Eu 2O 3 was investigated by laser-induced fluorescence line narrowing (FLN) techniques using Eu 3+ as a local site probe. From the site selective luminescence spectra of Eu 3+ at 7 K, the energies of the Stark components of the 7 F 1 and 7 F 2 states were recorded and then the crystal field parameters B nm were calculated assuming a C 2 v site symmetry. The ratios B 22/ B 20 and B 44/ B 40 for each excitation energy within 7 F 0– 5 D 0 transition were obtained and compared with the values calculated for Eu 3+ in other types of glasses.
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