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Start Over Author "Reben, Manuela" Journal optical materials
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6. Optical properties of Nd3+ and Er3+ ions in TeO2–WO3–PbO–La2O3 glasses

Author

Burtan, Bozena, Mazurak, Zbigniew, Cisowski, Jan, Czaja, Maria, Lisiecki, Radoslaw, Ryba-Romanowski, Witold, Reben, Manuela, and Wasylak, Jan

Subjects
*OPTICAL properties of metals, *RARE earth ions, *METALLIC oxides, *METALLIC glasses, *TEMPERATURE effect, *ABSORPTION spectra, *RELAXATION phenomena
Abstract

Abstract: Multicomponent telluride-tungstate glasses containing Nd3+ and Er3+ ions were studied experimentally at 77 and 293K using spectroscopic methods. The Judd–Ofelt intensity parameters were derived from the absorption spectra and used to calculate the radiative lifetimes and branching ratios. The quantum efficiency η =0.95 of the 4F3/2 level of Nd3+ ion is higher than the typical value of other tellurite-based glasses. For low concentration of Er3+ ions, the luminescence decay of the 4S3/2 and 4I11/2 levels is governed by radiative transitions and multiphonon relaxation involving the Te-O highest energy vibrations. [Copyright &y& Elsevier]

Published
2012
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