233 citations · 1.3k across the 42 of their papers we have counts for
8 papers · 1 filter
Dirac plasmon polaritons and magnetic modes in topological-insulator nanoparticles
Nikolaos Kyvelos, Vassilios Yannopapas, N. Asger Mortensen +1
We demonstrate the existence of previously unreported magnetic modes with record-high magnetic Purcell factors in topological-insulator nanospheres. Focusing on bismuth selenide (B…
Tunable exciton polaritons in band-gap engineered hexagonal boron nitride
Pedro Ninhos, Christos Tserkezis, N. Asger Mortensen +1
We show that hexagonal boron nitride (hBN), a two-dimensional insulator, when subjected to an external superlattice potential forms a new paradigm for electrostatically tunable exc…
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…
A Dedicated Modelling Scheme for Nonclassical Optical Response from the Nanosphere-on-Mirror Structure
Xiaotian Yan, Christos Tserkezis, N. Asger Mortensen +2
Within the framework of the T-matrix method, we present a modeling tool that predicts the optical response from the Nanosphere-on-Mirror (NSoM) construct. The nonclassical effects…
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…
The Uniqueness Theorem for Nonlocal Hydrodynamic Media
Christos Mystilidis, George Fikioris, Christos Tserkezis +2
We investigate a fundamental electromagnetic theorem, namely the uniqueness theorem, in the context of nonlocal electromagnetics, as simulated by a popular semiclassical model, the…
Nonlocal effects in atom-plasmon interactions
Mikkel Have Eriksen, Christos Tserkezis, N. Asger Mortensen +1
Nonlocal and quantum mechanical phenomena in noble metal nanostructures become increasingly crucial when the relevant length scales in hybrid nanostructures reach the few-nanometer…