The spectroscopic properties of strontium metaphosphate glass Sr(PO3)2 doped with Sm3+, Dy3+, Ho3+, Er3+ and Tm3+ are reported. From the experimental oscillator strengths of the f→f transitions the phenomenological Judd–Ofelt intensity parameters have been obtained. They appear to be higher than in the similar Pb(PO3)2 host at the beginning of the lanthanide series, whilst they are lower towards the end. Such a behavior is attributed to differences in the local structure around the doping ions in the two hosts. The stimulated emission cross section of the 4I13/2→4I15/2 transition of Er3+ is close to the values obtained for laser glasses of technological relevance.
Optical Spectroscopy of Trivalent Lanthanide Ions in Strontium Metaphosphate Glasses
CASARIN, MAURIZIO;
1998
Abstract
The spectroscopic properties of strontium metaphosphate glass Sr(PO3)2 doped with Sm3+, Dy3+, Ho3+, Er3+ and Tm3+ are reported. From the experimental oscillator strengths of the f→f transitions the phenomenological Judd–Ofelt intensity parameters have been obtained. They appear to be higher than in the similar Pb(PO3)2 host at the beginning of the lanthanide series, whilst they are lower towards the end. Such a behavior is attributed to differences in the local structure around the doping ions in the two hosts. The stimulated emission cross section of the 4I13/2→4I15/2 transition of Er3+ is close to the values obtained for laser glasses of technological relevance.Pubblicazioni consigliate
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