20 citations · 73 across the 6 of their papers we have counts for
8 papers
Surface quantum response of plasmonic heterodimers: revealing the hidden nonlocality
Ida Juliane Bundgaard, Christos Mystilidis, Frederik Wulff Christensen +7
We probe the quantum response of plasmonic heterodimers with extended (plane waves) and localized (point dipoles and electron beams) sources. Implementing the surface-response form…
Probing strong coupling in core--shell nanoparticles with fast electron beams
Annika Brandt, Christos Tserkezis, Carsten Rockstuhl +1
Collective optical excitations, such as localized surface plasmons in metallic nanoparticles and Mie resonances in high-index dielectrics, play a central role in nanoscale light--m…
T-matrix scattering formalism for electron-beam spectroscopy
P. Elli Stamatopoulou, Ulrich Hohenester, Carsten Rockstuhl
Advanced computational tools that describe the interaction of electrons with structured nanophotonic devices are crucial for theoretical predictions, specific design tasks, and the…
Quantum-informed plasmonics for strong coupling: the role of electron spill-out
Ida Juliane Bundgaard, Christian Nicolaisen Hansen, P. Elli Stamatopoulou +1
The effect of nonlocality on the optical response of metals lies at the forefront of research in nanoscale physics and, in particular, quantum plasmonics. In alkali metals, nonloca…
Self-hybridisation between interband transitions and Mie modes in dielectric nanoparticles
Christos Tserkezis, P. Elli Stamatopoulou, Christian Wolff +1
We discuss the possibility of self-hybridisation in high-index dielectric nanoparticles, where Mie modes of electric or magnetic type can couple to the interband transitions of the…
Electron beams traversing spherical nanoparticles: analytic and numerical treatment
P. Elli Stamatopoulou, Wenhua Zhao, Álvaro Rodríguez Echarri +4
We present an analytic, Mie theory-based solution for the energy-loss and the photon-emission probabilities in the interaction of spherical nanoparticles with electrons passing nea…
Disentangling cathodoluminescence spectra in nanophotonics: particle eigenmodes vs transition radiation
Saskia Fiedler, P. Elli Stamatopoulou, Artyom Assadillayev +6
Cathodoluminescence spectroscopy performed in an electron microscope has proven a versatile tool for analysing the near- and far-field optical response of plasmonic and dielectric…
Manipulating the photonic Hall effect with hybrid Mie-exciton resonances
P. Elli Stamatopoulou, Vassilios Yannopapas, N. Asger Mortensen +1
We examine the far-field optical response, under-plane wave excitation in the presence of a static magnetic field, of core-shell nanoparticles involving a gyroelectric component, e…