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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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Senthil Murugan, Ganapathy
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Study of prediction intervals in machine learning assisted mid-infrared spectroscopy for the diagnosis of neonatal respiratory distress syndrome
- 2022Prediction of neonatal respiratory distress biomarker concentration by application of machine learning to mid-infrared spectracitations
- 2019Mid-IR thermo-optic on-chip spectrometer on a III-V semiconductor platform
- 2018Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopycitations
- 2017Optical quality ZnSe films and low loss waveguides on Si substrates for mid-infrared applicationscitations
- 2014High-contrast, GeTe4 waveguides for mid-infrared biomedical sensing applicationscitations
- 2012Chalcogenide microsphere fabricated from fiber tapers using contact with a high-temperature ceramic surfacecitations
- 2012High-Q bismuth silicate nonlinear glass microsphere resonatorscitations
- 2012Investigation of Erbium-doped tellurite glasses for a planar waveguide power amplifier at 1.57 microns
- 2012Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidthcitations
- 2011Integrated Nd-doped borosilicate glass microsphere lasercitations
- 2011Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating
- 2011Lead silicate glass microsphere resonators with absorption-limited Qcitations
- 2010Multifarious transparent glass nanocrystal composites
- 2010Position-dependent coupling between a channel waveguide and a distorted microsphere resonatorcitations
- 2010Chalcogenide glass microsphere lasercitations
- 2010Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
- 2009Chalcogenide glass microspheres and their applications
- 2009Optical nonlinearities of tellurite glasses with ultrawide Raman bands
- 2007Chalcogenide glass microspheres: their production characterization and potentialcitations
- 2006Control of coupling between waveguides and microsphere resonators
- 2005Raman spectroscopic studies of quaternary tellurite glasses containing Nb2O5 and Ta2O5
Places of action
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article
Raman spectroscopic studies of quaternary tellurite glasses containing Nb2O5 and Ta2O5
Abstract
New quaternary glasses in the systems TeO<sub>2</sub>–BaO–SrO–Nb<sub>2</sub>O<sub>5</sub> and TeO<sub>2</sub>–BaO–SrO–Ta<sub>2</sub>O<sub>5</sub> are prepared, and are found to have improved thermal stabilities and refractive indices, making them suitable for photonics device applications. Systematic Raman spectroscopic studies of these glasses are undertaken to unravel the presence of various structural units, and the contributions made by them with varying modifier oxides contents have been quantified. A comparative study is made on the evolution of various structural units with the addition of modifier oxides in the two glass systems. The Raman bandwidths of these glasses are broader compared to conventional tellurite glasses. Both glass systems show an additional Raman band beyond 870 cm<sup>-1</sup> that is not present in other tellurite glass systems. The Nb–O related vibrational band near 870 cm<sup>-1</sup> is stronger than the band around 900 cm<sup>-1</sup> in the Ta<sub>2</sub>O<sub>5</sub> containing glasses. The coordination geometry of tellurium atoms in the presence of Nb<sub>2</sub>O<sub>5</sub> and Ta<sub>2</sub>O<sub>5</sub> is discussed with the help of molecular modelling results.