Enhanced frequency upconversion in Er3+ doped fluoroindate glass due to energy transfer from Tm3+
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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. © 2002 Elsevier Science B.V. All rights reserved.
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Doping (additives), Erbium, Frequencies, Positive ions, Relaxation processes, Thulium, Fluoroindate glasses, Glass
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Journal of Non-Crystalline Solids, v. 311, n. 3, p. 318-322, 2002.
