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Enhanced spatial energy transfer in Er-doped silica glasses

Energy transfer processes and the related photon diffusion have been investigated in Er-doped silica glasses. The spatial distribution of the luminescence on the sample surface was scanned by the spatially-resolved microluminescence technique for several samples with different Er 3+-ion concentratio...

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Bibliographic Details
Published in:Optical materials 2010-07, Vol.32 (9), p.1248-1250
Main Authors: Marques, F.A.M., Monte, A.F.G., Serqueira, E.O., Morais, P.C., Dantas, N.O.
Format: Article
Language:English
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Summary:Energy transfer processes and the related photon diffusion have been investigated in Er-doped silica glasses. The spatial distribution of the luminescence on the sample surface was scanned by the spatially-resolved microluminescence technique for several samples with different Er 3+-ion concentrations. Efficient long-range photon diffusion for the 1.54 μm emission was found at 1.85 wt.%. We propose an energy transfer process between erbium ions randomly distributed throughout the glass medium. Each ion acts as absorbers and emitters in such a way that the energy is spatially transferred.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2010.04.028