Glasses of ccomposition (x-1)Pb0.(100-x)GeO2.1Ln203, with x-30mol%(Ln=Nd,Eu,Er), 40mol% (Ln=Pr,Nd,Sm,Eu,Dy,Ho,Er,Tm), and 50-mol%(Ln=Eu,Er), have been prepared by quenching the oxidic melts. From the optical absorption and emission spectra in the ultraviolet-visible-near-infrared (UV-VIS-NIR) region, the intensity parameters, spontaneous emission probabilities, branching ratios, radiative lifetimes, and, for selected NIR transitions, peak stimulated emission cross sections have been obtained.
Origin
Universita Di Verona, Italy
Journal Title
J Am Ceram Soc 81 8 1998 2045-2052
Sector
Special Glass
Class
S 1555