Abstract
Energy transfer processes between Er3+ and Tm3+ were investigated examining the frequency upconversion emissions in a fluoroindate glass pumped at 790 nm. A 60-fold enhancement in the emission at ≈670 nm originating from Er3+ was observed when Tm3+ at concentration of 2% was introduced in a sample containing 2% of Er3+. The results are explained considering the influence of cross-relaxation processes between the active ions.
Original language | English |
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Pages (from-to) | 318-322 |
Number of pages | 5 |
Journal | Journal of Non-Crystalline Solids |
Volume | 311 |
Issue number | 3 |
DOIs | |
State | Published - Dec 2002 |
Bibliographical note
Funding Information:This work was supported by the Brazilian Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico (CNPq) and Programa de Núcleos de Excelência (PRONEX). We also thank G.S. Maciel and N. Rakov for discussions and B.J.P. da Silva for polishing the samples.