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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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Raza, Søren
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Gallium Phosphide Nanoparticles for Low‐Loss Nanoantennas in Visible Rangecitations
- 2022Computational Discovery and Experimental Demonstration of Boron Phosphide Ultraviolet Nanoresonatorscitations
- 2022Mode Hybridization in Silicon Core–Gold Shell Nanospherecitations
- 2021Nanoelectromechanical modulation of a strongly-coupled plasmonic dimercitations
- 2018DNA-Assembled Plasmonic Waveguides for Nanoscale Light Propagation to a Fluorescent Nanodiamondcitations
- 2017Broadband infrared absorption enhancement by electroless-deposited silver nanoparticlescitations
- 2016Electron energy-loss spectroscopy of branched gap plasmon resonatorscitations
- 2016Higher-order surface plasmons resonances and their disappearance in fewnanometer silver nanoparticles
- 2016Higher-order surface plasmons resonances and their disappearance in fewnanometer silver nanoparticles
- 2014Experimental study of nonlocal effects in plasmonic structures with Electron Energy Loss Spectroscopy
- 2013Blueshift of the surface plasmon resonance studied with Electron Energy Loss Spectroscopy (EELS)
- 2013Blueshift of the surface plasmon resonance in silver nanoparticles: substrate effectscitations
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article
Mode Hybridization in Silicon Core–Gold Shell Nanosphere
Abstract
A dielectric core–metal shell nanosphere has attracted scientific and technological interests due to the unique optical resonances arising from the hybridization of surface plasmon modes and cavity modes. The previous studies focus on a low-index dielectric core without its own optical resonances. Here, optical resonances of a core–shell nanosphere with a high refractive index (n ≈ 4) core with the lowest order Mie resonances in the visible range are investigated theoretically and experimentally. Scattering and absorption spectra of a core–shell nanosphere for different values of the core refractive index are first analyzed, and there is a transition of the hybridization scheme around n ≈ 2. Above the value, a characteristic hybridized mode with strong absorption and weak scattering emerges in the near-infrared range. A core–shell nanosphere composed of a silicon core and a gold shell is prepared, and the resonance modes are studied by single particle scattering spectroscopy and electron energy loss spectroscopy (EELS) in a transmission electron microscope. The core–shell nanospheres exhibit the hybridized modes depending on the core diameter. The hybridized mode as well as the higher order one that is not observable in the scattering spectroscopy is observed in the EELS.