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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
Design and implementation of fiber-embedded plasmonic structures in microwires
Abstract
Plasmonic structures can dramatically enhance photonic devices functionality [1] by providing controllable field confinement and light nanofocussing which are crucial for imaging, diagnostic, and sensing applications. Pure metallic tips or metal coated optical fibers have been demonstrated as fiber-compatible efficient plasmonic devices [2] but with limited applicability in real applications due to fragility and limited environmental robustness.<br/><br/>The proposed platform based on hybrid microwires composed of metal core and silicate glass cladding offers the required robustness and flexibility for engineering and developing plasmonic devices in all-fiber form [3]. The presence of the dielectric cladding offers continuous re-excitation of the plasmon modes due to repeated total internal reflection at the glass/air interface, which can dramatically reduce the high losses induced by the metal core and allow long propagation distances. This enables direct light coupling from the distal end of fiber instead of side excitation of the tip, allowing their integration in optical fiber or and planar integrated circuitry for hybrid architectures. By employing the heating and stretching thermal processing method for diameter tapering of microwires with gold core, high-quality all-fiber plasmonic tips with high field intensity at the tip apex have been fabricated. Furthermore, embedded metal microspheres, as seen in the figure, were controllably formed targeting to the development of in-fiber plasmonic resonators.<br/><br/>Extensive theoretical and experimental investigations were necessary for the identification of appropriate tapering conditions and adiabatic metal tips development with well-defined geometrical characteristics. In this context, analytical studies and microfluidic simulations by Finite Element Method — FEM were performed for the understanding of the appropriate thermal processing conditions of microwires and their behaviour towards their diameter tapering without discontinuities and metal core breakage. Fabricated plasmonic tips performance was successfully related to simulation results by FEM, predicting high field enhancement factors up to 10<sup>5</sup>. Furthermore, theoretical investigations of instabilities-driven formation of gold microspheres embedded in the glass cladding by heating the hybrid microfibers was also performed suggesting ways to control the spherical formed features.<br/>