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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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Craig, Christopher
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2023Expanding the transmission window of visible-MWIR chalcogenide glasses by silicon nitride doping
- 2022Whispering gallery mode resonances in thermally poled borosilicate glass hetero-fiberscitations
- 2021Manufacturing of GLS-Se glass rods and structured preforms by extrusion for optical fiber drawing for the IR regioncitations
- 2021Manufacturing of GLS-Se glass rods and structured preforms by extrusion for optical fiber drawing for the IR regioncitations
- 2021Whispering gallery mode resonances in thermally poled borosilicate glass optical microcavities
- 2020GLS-Se optical fibre from extruded glass structured preforms and rods for the IR regioncitations
- 2019Chalcogenide materials and applications: from bulk to 2D (Invited Talk)
- 2019Chalcogenide materials and applications: from bulk to 2D (Invited Talk)
- 2019Erbium-doped chalcogenide glass thin film on silicon using femtosecond pulsed laser with different deposition temperaturescitations
- 2019Giant photoinduced chirality in thin film Ge2Sb2Te5citations
- 2019Fabrication of structured GLS-Se glass preforms by extrusion for fibre drawing
- 2019Radiation trapping in selected Er3+ doped chalcogenide glasses and the extraction of the nonradiative lifetimecitations
- 2019High-throughput physical vapour deposition flexible thermoelectric generatorscitations
- 2019Design and implementation of fiber-embedded plasmonic structures in microwires
- 2018Chalcogenide optical fibres based on gallium lanthanum sulphide-Se for passive and active applications
- 2018Chalcogenide optical fibres based on gallium lanthanum sulphide-Se for passive and active applications
- 2018Further studies of radiation trapping in Er3+ doped chalcogenide glassescitations
- 2018High speed chalcogenide glass electrochemical metallization cells with various active metalscitations
- 2018All-fiber plasmonic platform based on hybrid composite metal/glass microwirescitations
- 2017Structural modification of Ga-La-S glass for a new family of chalcogenidescitations
- 2017Dielectric and structural characterisation of chalcogenide glasses via terahertz time-domain spectroscopycitations
- 2017Chemical vapor deposition and Van der Waals epitaxy for wafer-scale emerging 2D transition metal di-chalcogenides
- 2017Optical, thermal, and mechanical characterization of Ga 2 Se 3 -Added GLS glasscitations
- 2017Optical, thermal, and mechanical characterization of Ga2Se3-Added GLS glasscitations
- 2017Enhancing the applications of chalcogenide glass for passive and active multispectral applications
- 2017Measurement of dn/dT and dk/dT of optical crystals, ceramics, and chalcogenide glasses between 80K and 1050K
- 2017Further studies of radiation trapping in Er3+ doped chalcogenide glasses
- 2016Next generation chalcogenide glasses for visible and IR imaging
- 2016Robust plasmonic tips fabricated by the tapering of composite hybrid silicate microfibers with metallic core
- 2016Lithography assisted fiber-drawing nanomanufacturingcitations
- 2016Ga-La-S glass for UV and IR applications
- 2015Amorphous metal-sulphide microfibers enable photonic synapses for brain-like computingcitations
- 2015Planar-fiber nanomanufacturing
- 2015Properties of gallium lanthanum sulphide glass
- 2014Femtosecond multi-level phase switching in chalcogenide thin films for all-optical data and image processing
- 2014Multimaterial fiber nanomanufacturing: from photodetectors to nonlinear light sources
- 2014Manufacturing high purity chalcogenide glass
Places of action
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document
Chalcogenide optical fibres based on gallium lanthanum sulphide-Se for passive and active applications
Abstract
Chalcogenide optical fibres contain mixtures of chalcogen elements (i.e. S, Se and Te) bonded covalently to other metallic elements that facilitate a stable glass formation. Our work in particular focuses on chalcogenide glasses containing a high proportion of lanthanum, that is gallium lanthanum sulphide glasses (GLS). These glasses due to their nature are characterized by a range of desirable properties such as chemical durability, host for rare-earth (RE) ions, low thermal expansion, high laser damage threshold, density and refractive index and a good transparency in the infrared (IR) region. Characteristics that are beneficial for active and passive applications such as sensors or high-energy IR laser power delivery, as examples. To increase the IR transmission window of GLS glasses a new family of chalcogenides have been developed, incremental additions of Se to the GLS glasses have proved their value to improve the transmission spectrum from visible to Long Wavelength Infrared (LWIR) range up to 15μm, depending on the composition. The strong thermal and mechanical characteristics of GLS-Se glasses compared to GLS have also shown that they can suit the production of optical elements, such as optical fibres that require certain thermal and mechanical stability for fibre drawing to avoid crystallization and breakages. [1-5] Theoretical minimum loss predictions in GLS based optical fibres have shown up to 0.5 dB km-1 at 3.5 μm, used in thermal imaging, unfortunately we are still far from that value but big efforts are being made to improve the production of optical fibres as shown in Fig. 1 by obtaining novel processes and more pure raw materials. [6] Chalcogenide RE doped glasses have demonstrated laser action, showing that they are suitable for active applications such as optical amplifiers and lasers [7]. The aim of this research is to join the well-known properties of chalcogenides glasses for the IR region with the development of a novel process to obtain functional passive and active optical fibres and prove the reliability as a host for RE ions, future work will include laser demonstration.