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Preparation and characterization of new fluorotellurite glasses for photonics application
Politecnico di Torino.
Politecnico di Torino. (Dipartimento di Scienza dei Materiali ed Ingegneria Chimica)
Politecnico di Torino.
Politecnico di Torino.
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2009 (English)In: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 355, no 7, 447-452 p.Article in journal (Refereed) Published
Abstract [en]

Glasses based on (85 − x)TeO2xZnF2–12PbO–3Nb2O5 (x = 0–40) system have been studied for the first time for fabricating mid-infrared optical fiber lasers. The thermal and optical properties including UV–Vis, Raman as well as FTIR spectra are reported. It is demonstrated that increasing the ZnF2 concentration to 30 mol% significantly increased the thermal stability of the glass. Adding ZnF2 also reduced the hydroxyl (OH) content of the glass resulting in lower optical absorption in the mid-infrared region, which is crucial for infrared laser applications. The glass absorption cut-off edge near 400 nm blue-shifts with increasing ZnF2 addition. Raman spectra show a depolymerization of the glass network with increasing transformation of TeO3+1 to TeO3 structures.

Place, publisher, year, edition, pages
2009. Vol. 355, no 7, 447-452 p.
Keyword [en]
Infrared glasses, Fluorides, Heavy metal oxides, Optical properties, Absorption, Optical spectroscopy, FTIR measurements, Raman spectroscopy, Oxide glasses, Tellurites, Thermal properties, Calorimetry, Glass transition
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-89532DOI: 10.1016/j.jnoncrysol.2009.01.011ISI: 000264963000009OAI: diva2:503111
QC 20120215Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-02-15Bibliographically approved

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Fokine, Michael
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