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Spectral migration of excitation energy among Nd3+ ions in fluoroarsenate glasses

AuthorsBalda, Rolindes ; Lacha, L. M.; Arriandiaga, M. A.; Fernández, Joaquín ; Adam, J. L.
Issue Date2002
CitationComptes Rendus Chimie 5(11): 725-729 (2002)
Abstract[EN]: In this work, we have investigated the existence of energy transfer among Nd3+ ions in fluoroarsenate glasses of the Na4As2O7, BaF2, YF3 system with different Nd3+ concentrations (0.5, 2, 3, 4, and 5 mol%) by using time-resolved fluorescence line narrowing spectroscopy. The spectral features of the time resolved fluorescence line narrowing 4F3/2→4I9/2 emission spectra obtained under resonant excitation reveal the existence of spectral migration of excitation among the Nd3+ ions. The analysis of the time evolution of the 4F3/2→4I9/2 narrowed emission shows that the electronic mechanism responsible for the ion–ion interaction can be identified as a dipole–dipole energy transfer process.
[FR]: Le transfert d’énergie entre ions Nd3+ a été étudié dans des verres de fluoroarséniates à différentes concentrations en néodyme par spectroscopie de fluorescence à résolution temporelle en rétrécissement de bande. Les résultats mettent en évidence la migration spectrale de l’excitation des ions Nd3+. Le mécanisme responsable de lˈinteraction ion–ion a été identifié comme un processus de transfert d’énergie dipôle–dipôle.
Publisher version (URL)https://doi.org/10.1016/S1631-0748(02)01446-7
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