133 citations · 436 across the 11 of their papers we have counts for
10 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…
Prospects to bypass nonlocal phenomena in metals using phonon-polaritons
Jacob T. Heiden, Eduardo J. C. Dias, Minhyuk Kim +6
Electromagnetic design relies on an accurate understanding of light-matter interactions, yet often overlooks electronic length scales. Under extreme confinement, this omission can…
Topology in a one-dimensional plasmonic crystal
D. A. Miranda, Y. V. Bludov, N. Asger Mortensen +1
In this paper we study the topology of the bands of a plasmonic crystal composed of graphene and of a metallic grating. Firstly, we derive a Kronig-Penney type of equation for the…
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…
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…
Harnessing Ultraconfined Graphene Plasmons to Probe the Electrodynamics of Superconductors
A. T. Costa, P. A. D. Gonçalves, D. N. Basov +3
We show that the Higgs mode of a superconductor, which is usually challenging to observe by far-field optics, can be made clearly visible using near-field optics by harnessing ultr…
Magnetic and Electric Mie-Exciton Polaritons in Silicon Nanodisks
Francesco Todisco, Radu Malureanu, Christian Wolff +4
Light-matter interactions at the nanoscale constitute a fundamental ingredient for engineering applications in nanophotonics and quantum optics. To this regard electromagnetic Mie…
Fluctuations and noise-limited sensing near the exceptional point of -symmetric resonator systems
N. Asger Mortensen, P. A. D. Gonçalves, Mercedeh Khajavikhan +3
We theoretically explore the role of mesoscopic fluctuations and noise on the spectral and temporal properties of systems of -symmetric coupled gain-loss resonators o…
Probing Nonlocal Effects in Metals with Graphene Plasmons
Eduardo J. C. Dias, David Alcaraz Iranzo, P. A. D. Gonçalves +6
In this paper we analyze the effects of nonlocality on the optical properties of a system consisting of a thin metallic film separated from a graphene sheet by a hexagonal boron ni…