Quench-free enhanced emission in cluster-free Er-doped heavy metal oxide glasses

We successfully demonstrate new heavy metal-gallium-doped oxide glass media, which are capable of accommodating a significant level of Er3+ doping, while avoiding the deleterious effects of concentration quenching. We examine the effects of composition and microstructure of the glass networks on opt...

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Bibliographic Details
Published in:Optical materials express 2019-03, Vol.9 (3), p.1072
Main Authors: Lipinska, Kristina, Cavallo, Francesca, Ayitou, A. Jean-Luc, Segre, Carlo U.
Format: Article
Language:English
Subjects:
Clustering
Composition effects
Erbium
Fine structure
Gallium
Glass
Heavy metal oxides
Heavy metals
Near infrared radiation
Optical communication
Optical properties
Quenching
Raman spectroscopy
Spectrum analysis
X ray absorption
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Summary:We successfully demonstrate new heavy metal-gallium-doped oxide glass media, which are capable of accommodating a significant level of Er3+ doping, while avoiding the deleterious effects of concentration quenching. We examine the effects of composition and microstructure of the glass networks on optical properties. Near-infrared and visible emission demonstrate the absence of concentration quenching and Er3+ clustering. Both Raman spectroscopy and X-ray absorption fine structure spectroscopy confirm that gallium enters the glass as a tetrahedral network former. The incorporation of gallium into the glass modifies the energy landscape and creates two distinct crystal field environments, which promote Er3+ radiative transitions.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.9.001072