6 papers
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…
A T-matrix scattering formalism for electron-beam spectroscopy
P. Elli Stamatopoulou, Carsten Rockstuhl
Advanced computational tools that describe the interaction of electrons with structured nanophotonic materials are crucial for theoretical predictions, specific design tasks, and t…
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…
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…