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dc.contributor.authorBalda, Rolindes-
dc.contributor.authorFernández, Joaquín-
dc.contributor.authorPablos, Ángel de-
dc.contributor.authorFernández Navarro, José María-
dc.identifierdoi: 10.1103/PhysRevB.48.2941-
dc.identifierissn: 0163-1829-
dc.identifier.citationPhysical Review B 48: 2941-2948 (1993)-
dc.description.abstractEnergy transfer between chromium and neodymium ions in a mixed fluorophosphate glass [21.74Al(PO3)3-57.8BaF2-16.96AlF3] has been investigated in the 4.2-300 K temperature range by using steady-state and time-resolved laser spectroscopy. Radiative and nonradiative energy transfer has been demonstrated from the time-resolved emission spectra and the decrease of the Cr3+ lifetimes. Comparison between time-resolved emission spectra for Cr3+ singly doped and codoped samples with different Nd3+ concentrations shows that the radiative transfer is linearly dependent on Nd3+ concentration. The nonradiative energy transfer is consistent with an electric-dipole-electric-dipole interaction mechanism. Good agreement is found if transfer efficiency corrected for Nd-Nd self-quenching is compared with the measured sensitized Nd3+ luminescence. The transfer efficiency of a Cr3+, Nd3+ system in the investigated fluorophosphate glass has also been compared with previous results in a pure fluoride glass giving a higher efficiency for the fluorophosphate glass if the Nd2O3 concentration is kept below 2 wt %. © 1993 The American Physical Society.-
dc.description.sponsorshipThis work was supported by the Comision Interministerial de Ciencia y Tecnologia (CICYT) of the Spanish Government (Ref. 0434/93), Basque Country Government (Ref. PGV 9012), and Basque Country University (Ref. E126/91).-
dc.publisherAmerican Physical Society-
dc.titleCr3+→Nd3+ energy transfer in fluorophosphate glass investigated by time-resolved laser spectroscopy-
dc.description.versionPeer Reviewed-
dc.contributor.funderComisión Interministerial de Ciencia y Tecnología, CICYT (España)-
dc.contributor.funderUniversidad del País Vasco-
dc.contributor.funderEusko Jaurlaritza-
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