Comparative investigation on the spectroscopic properties of Pr³⁺-doped boro-phosphate, boro-germo-silicate and tellurite glasses

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• 作者：Liaolin Zhang ; Guoping Dong ; Mingying Peng ; Jianrong Qiu ; ^{qjr@scut.edu.cn}
• 关键词：Phonon energy ; Multi-phonon relaxation ; Pr3+-doped glasses
• 刊名：Spectrochimica Acta Part A ; Molecular and Biomolecular Spectroscopy
• 出版年：2012
• 期刊代码：99_13861425
• 类别：ch
• 出版时间：July, 2012
• 卷：93
• 期：Complete
• 页码：223-227
• 文件大小：417 K

摘要

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 596 nm and 605 nm is observed in Pr³⁺-doped boro-phosphate and boro-germo-silicate glasses, respectively, while three emissions at 605 nm, 612 nm and 645 nm are observed in Pr³⁺-doped tellurite glass when excited at 467 nm. The fluorescence lifetime at 600 nm in Pr³⁺-doped boro-phosphate, boro-germo-silicate and tellurite glasses is 137 渭s, 73 渭s and 51 渭s, 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.