| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Beleggia, Marco
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2019Optical property – composition correlation in noble metal alloy nanoparticles studied with EELScitations
- 2018Charging of carbon thin films in scanning and phase-plate transmission electron microscopycitations
- 2017The substrate effect in electron energy-loss spectroscopy of localized surface plasmons in gold and silver nanoparticlescitations
- 2017The substrate effect in electron energy-loss spectroscopy of localized surface plasmons in gold and silver nanoparticlescitations
- 2015Effect of Magnetostatic Interactions on Twin Boundary Motion in NiMnGa Magnetic Shape Memory Alloycitations
- 2014Interferometric methods for mapping static electric and magnetic fieldscitations
- 2014Magnetic Imaging with a Novel Hole-Free Phase Platecitations
- 2014Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needlecitations
- 2010Near-Curie magnetic anomaly at the Ni/C interface observed by Electron Holographycitations
- 2010Dynamical Response of Catalytic Systems in a CS Corrected Environmental Transmission Electron Microscope
- 2007Polaron melting and ordering as key mechanisms for colossal resistance effects in manganites.citations
- 2006Quantitative shadow technique for the investigation of magnetic domain wall widthscitations
Places of action
| Organizations | Location | People |
|---|
article
The substrate effect in electron energy-loss spectroscopy of localized surface plasmons in gold and silver nanoparticles
Abstract
Electron energy-loss spectroscopy (EELS) has become increasingly popular for detailed characterization of plasmonic nanostructures, owing to the unparalleled spatial resolution of this technique. The typical setup in EELS requires nanoparticles to be supported on thin substrates. However, as in optical measurements, the substrate material can modify the acquired signal. Here, we have investigated how the EELS signal recorded from supported silver and gold spheroidal nanoparticles at different electron beam impact parameter positions is affected by the choice of a dielectric substrate material and thickness. Consistent with previous optical studies, the presence of a dielectric substrate is found to redshift localized surface plasmons, increase their line-widths, and lead to increased prominence of higher order modes. The extent of these modifications heightens with increasing substrate permittivity and thickness. Specific to EELS, the results highlight the importance of the beam impact parameter and substrate related Čerenkov losses and charging. Our experimental results are compared with and corroborated by full-wave electromagnetic simulations based on the boundary element method. The results present a comprehensive study of substrate induced modifications in EELS and allow identification of optimal substrates relevant for EELS studies of plasmonic structures.