Abstract
Near-infrared broadband luminescence from 1100 to 1600 nm was observed in Bi2O3-GeO2 binary glasses. The strongest emission can be observed with 30 mol % Bi2O3 when pumped at 808 nm. The lifetimes of all samples are longer than 200 μs. The glass network was studied by Raman spectra and Bi+ ions are proposed as the infrared luminescence centers in this glass system. Thermal treatment in air results in partly oxidation of Bi+ to Bi2+.
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Guo, X., Li, H.J., Su, L.B. et al. Near-infrared broadband luminescence in Bi2O3-GeO2 binary glass system. Laser Phys. 21, 901–905 (2011). https://doi.org/10.1134/S1054660X11090106
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DOI: https://doi.org/10.1134/S1054660X11090106