13 April 2000 Efficient visible up-conversion emission in Pr3+- and Er3+-doped aluminum fluorophospate glasses
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Proceedings Volume 3942, Rare-Earth-Doped Materials and Devices IV; (2000) https://doi.org/10.1117/12.382856
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
Abstract
Intense upconversion of yellow-to-blue, in Pr3+- doped, and green-to-blue in Er3+-doped aluminum fluoride glasses is reported. Pulsed excitations inside the 3H4 yields 1D2 absorption band of Pr3+ results in blue emission which is ascribed to the 3P0 yields 3H4 transition. We found that the temporal evolution of the upconverted fluorescence is characterized by rise and decay times depending on Pr3+ concentration. The upconversion mechanism is a two step process due to the energy transfer involving a pair of Pr3+ ions. The data indicate a high solubility of the Pr3+ ions without clustering at the doping level between 0.1 - 1% mol Pr3+. Measurements performed in Er3+ doped glasses indicate a good quantum yield of the upconversion emission confirming the high solubility of Er3+ ions in the aluminum fluoride glasses.
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Victor K. Tikhomirov, Victor K. Tikhomirov, Raffaella Rolli, Raffaella Rolli, Maurizio Montagna, Maurizio Montagna, Maurizio Ferrari, Maurizio Ferrari, Animesh Jha, Animesh Jha, } "Efficient visible up-conversion emission in Pr3+- and Er3+-doped aluminum fluorophospate glasses", Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382856; https://doi.org/10.1117/12.382856
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