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Aufsatz zugänglich unter
URN: urn:nbn:de:bvb:29-opus-36003
URL: http://www.opus.ub.uni-erlangen.de/opus/volltexte/2012/3600/
Luminescence from bismuth-germanate glasses and its manipulation through oxidants
Winterstein, Anja ;
Manning, Sean ;
Ebendorff-Heidepriem, Heike ;
Wondraczek, Lothar
| Originalveröffentlichung: |
| (2012) Optical Materials Express 2.10 (2012): S. 1320-1328. 10.10.2012 <http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-2-10-1320> |
| pdf-Format:
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| SWD-Schlagwörter: |
| - |
| Collection: |
| Universität Erlangen-Nürnberg / Von der FAU geförderte Open Access Artikel / 2012 |
| Fakultät: |
| Naturwissenschaftliche Fakultät |
| DDC-Sachgruppe: |
| Physik |
| Dokumentart: |
| Aufsatz |
| Sprache: |
| Englisch |
| Erstellungsjahr: |
| 2012 |
| Publikationsdatum: |
| 10.10.2012 |
| Kurzfassung in Englisch: |
| We report on the luminescence properties of bismuth-germanate glasses in which the speciation of bismuth is controlled via addition of CeO2 as an oxidant. A glass system with the composition (70.5-x)GeO2 – 24.5Bi2O3 – 5WO3: xCeO2, with x = 0...2.0, is analyzed in terms of optical properties and redox states of bismuth and cerium. We show that optical transmission and luminescence in the visible to near-infrared (NIR) spectral range can be adjusted by the ratio of bismuth and cerium. Specifically, ultra-broad NIR luminescence spanning the range of 1000 – 1600 nm can be obtained for x ≤ 0.1. This is of particular interest for application of this type of glass in fiber-optical amplifiers where no additional dopants would be required. |
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