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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hewak, Dw
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Topics
Publications (11/11 displayed)
- 2018High speed chalcogenide glass electrochemical metallization cells with various active metalscitations
- 2015Fragile-to-Strong Crossover in Supercooled Liquid Ag-In-Sb-Te Studied by Ultrafast Calorimetry
- 2014Optical and electronic properties of bismuth-implanted glassescitations
- 2014n-type chalcogenides by ion implantationcitations
- 2014n-type chalcogenides by ion implantation.citations
- 2013On the analogy between photoluminescence and carrier-type reversal in Bi- and Pb-doped glassescitations
- 2011Determination of the oxidation state and coordination of a vanadium doped chalcogenide glasscitations
- 2009Spectral broadening in femtosecond laser written waveguides in chalcogenide glasscitations
- 2009Ultrabroad emission from a bismuth doped chalcogenide glasscitations
- 2007Concentration dependence of the fluorescence decay profile in transition metal doped chalcogenide glasscitations
- 2005A study of environmental effects on the attenuation of chalcogenide optical fibrecitations
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article
Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass
Abstract
Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunicationswavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and578 nm, and a spin forbidden absorption transition at 1000 nm. X-ray photoelectron spectroscopy indicatedthe presence of vanadium in a range of oxidation states from V+ to V5+. Excitation of each absorptionband resulted in the same characteristic emission spectrum and lifetime, indicating that only oneoxidation state is optically active. Arguments based on Tanabe–Sugano analysis indicated that the configurationof the optically active vanadium ion was octahedral V2+. The calculated crystal field parameters(Dq/B, B and C/B) were 1.85, 485.1 and 4.55, respectively.