133 citations · 584 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…
Interrogating Quantum Nonlocal Effects in Nanoplasmonics through Electron-Beam Spectroscopy
P. A. D. Gonçalves, F. Javier García de Abajo
A rigorous account of quantum nonlocal effects is paramount for understanding the optical response of metal nanostructures and for designing plasmonic devices at the nanoscale. Her…
Optical response of noble metal nanostructures: Quantum surface effects in crystallographic facets
A. Rodríguez Echarri, P. A. D. Gonçalves, C. Tserkezis +3
Noble metal nanostructures are ubiquitous elements in nano-optics, supporting plasmon modes that can focus light down to length scales commensurate with nonlocal effects associated…
Quantum Surface-Response of Metals Revealed by Acoustic Graphene Plasmons
P. A. D. Gonçalves, Thomas Christensen, N. M. R. Peres +5
A quantitative understanding of the electromagnetic response of materials is essential for the precise engineering of maximal, versatile, and controllable light--matter interaction…
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…
Magnetoplasmons in monolayer black phosphorus structures
Yun You, P. A. D. Gonçalves, Linfang Shen +3
Two-dimensional materials supporting deep-subwavelength plasmonic modes can also exhibit strong magneto-optical responses. Here, we theoretically investigate magnetoplasmons (MPs)…
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…
Universal description of channel plasmons in two-dimensional materials
P. A. D. Gonçalves, Sergey I. Bozhevolnyi, N. Asger Mortensen +1
Channeling surface plasmon-polaritons to control their propagation direction is of the utmost importance for future optoelectronic devices. Here, we develop an effective-index meth…