113 citations · 971 across the 28 of their papers we have counts for
4 papers · 1 filter
Topological collective plasmons in bipartite chains of metallic nanoparticles
Charles A. Downing, Guillaume Weick
We study a bipartite linear chain constituted by spherical metallic nanoparticles, where each nanoparticle supports a localized surface plasmon. The near-field dipolar interaction…
Massless Dirac fermions in two dimensions: Confinement in nonuniform magnetic fields
C. A. Downing, M. E. Portnoi
We show how it is possible to trap two-dimensional massless Dirac fermions in spatially inhomogeneous magnetic fields, as long as the formed magnetic quantum dot (or ring) is of a…
Magnetic quantum dots and rings in two dimensions
C. A. Downing, M. E. Portnoi
We consider the motion of electrons confined to a two dimensional plane with an externally applied perpendicular inhomogeneous magnetic field, both with and without a Coulomb poten…
Nonradiative limitations to plasmon propagation in chains of metallic nanoparticles
Adam Brandstetter-Kunc, Guillaume Weick, Charles A. Downing +2
We investigate the collective plasmonic modes in a chain of metallic nanoparticles that are coupled by near-field interactions. The size- and momentum-dependent nonradiative Landau…