Abstract
We report on the spectroscopic properties of Pr3+-doped boro-phosphate, boro-germo-silicate and tellurite glasses. The stimulated absorption and emission cross sections were estimated. Only one emission at 596nm and 605nm is observed in Pr3+-doped boro-phosphate and boro-germo-silicate glasses, respectively, while three emissions at 605nm, 612nm and 645nm are observed in Pr3+-doped tellurite glass when excited at 467nm. The fluorescence lifetime at 600nm in Pr3+-doped boro-phosphate, boro-germo-silicate and tellurite glasses is 137μs, 73μs and 51μs, respectively. The emissions from Pr3+-doped boro-phosphate, boro-germo-silicate and tellurite glasses show different decay behaviors and can be well explained by multiphonon relaxation theory.
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