110 citations · 338 across the 11 of their papers we have counts for
11 papers
Plasmonic waveguides in two-dimensional materials: a quantum mechanical description using semiclassical techniques
T. M. Koskamp, M. I. Katsnelson, K. J. A. Reijnders
Plasmons are likely to play an important role in integrated photonic ciruits, because they strongly interact with light and can be confined to subwavelength scales. These plasmons…
Optical properties, plasmons, and orbital Skyrme textures in twisted TMDs
Lorenzo Cavicchi, Koen J. A. Reijnders, Mikhail I. Katsnelson +1
In the long-wavelength limit, Bloch-band Berry curvature has no effect on the bulk plasmons of a two-dimensional electron system. In this Letter we show instead that bulk plasmons…
Semiclassical theory for plasmons in two-dimensional inhomogeneous media
T. M. Koskamp, M. I. Katsnelson, K. J. A. Reijnders
The progress in two-dimensional materials has led to rapid experimental developments in quantum plasmonics, where light is manipulated using plasmons. Although numerical methods ca…
Semiclassical theory for plasmons in spatially inhomogeneous media
K. J. A. Reijnders, T. Tudorovskiy, M. I. Katsnelson
Recent progress in experimental techniques has made the quantum regime in plasmonics accessible. Since plasmons correspond to collective electron excitations, the electron-electron…
Exploiting Aharonov-Bohm oscillations to probe Klein tunneling in tunable pn-junctions in graphene
Jan Dauber, Koen J. A. Reijnders, Luca Banszerus +6
One of the unique features of graphene is that the Fermi wavelength of its charge carriers can be tuned electrostatically over a wide range. This allows in principle to tune the tr…
Electronic optics in graphene in the semiclassical approximation
K. J. A. Reijnders, D. S. Minenkov, M. I. Katsnelson +1
We study above-barrier scattering of Dirac electrons by a smooth electrostatic potential combined with a coordinate-dependent mass in graphene. We assume that the potential and mas…
Diffraction catastrophes and semiclassical quantum mechanics for Veselago lensing in graphene
K. J. A. Reijnders, M. I. Katsnelson
We study the effect of trigonal warping on the focussing of electrons by n-p junctions in graphene. We find that perfect focussing, which was predicted for massless Dirac fermions,…
Symmetry breaking and (pseudo)spin polarization in Veselago lenses for massless Dirac fermions
K. J. A. Reijnders, M. I. Katsnelson
We study Veselago lensing of massless Dirac fermions by n-p junctions for electron sources with a certain polarization. This polarization corresponds to pseudospin for graphene and…
Modeling Klein tunneling and caustics of electron waves in graphene
R. Logemann, K. J. A. Reijnders, T. Tudorovskiy +2
We employ the tight-binding propagation method to study Klein tunneling and quantum interference in large graphene systems. With this efficient numerical scheme, we model the propa…
Semiclassical theory of potential scattering for massless Dirac fermions
K. J. A. Reijnders, T. Tudorovskiy, M. I. Katsnelson
In this paper we study scattering of two-dimensional massless Dirac fermions by a potential that depends on a single Cartesian variable. Depending on the energy of the incoming par…
Chiral tunneling in single and bilayer graphene
T. Tudorovskiy, K. J. A. Reijnders, M. I. Katsnelson
We review chiral (Klein) tunneling in single-layer and bilayer graphene and present its semiclassical theory, including the Berry phase and the Maslov index. Peculiarities of the c…