79 citations · 353 across the 12 of their papers we have counts for
8 papers · 1 filter
Graphene plasmons: impurities and nonlocal effects
Giovanni Viola, Tobias Wenger, Jari Kinaret +1
This work analyses how impurities and vacancies on the surface of a graphene sample affect its optical conductivity and plasmon excitations. The disorder is analysed in the self-co…
Current-controlled light scattering and asymmetric plasmon propagation in graphene
Tobias Wenger, Giovanni Viola, Jari Kinaret +2
We demonstrate that plasmons in graphene can be manipulated using a DC current. A source-drain current lifts the forward/backward degeneracy of the plasmons, creating two modes wit…
High-sensitivity plasmonic refractive index sensing using graphene
Tobias Wenger, Giovanni Viola, Jari Kinaret +2
We theoretically demonstrate a high-sensitivity, graphene-plasmon based refractive index sensor working in the mid-infrared at room temperature. The bulk figure of merit of our sen…
Optical signatures of nonlocal plasmons in graphene
Tobias Wenger, Giovanni Viola, Philippe Tassin +2
We theoretically investigate under which conditions nonlocal plasmon response in monolayer graphene can be detected. To this purpose, we study optical scattering off graphene plasm…
Collective modes in the fluxonium qubit
G. Viola, G. Catelani
Superconducting qubit designs vary in complexity from single- and few-junction systems, such as the transmon and flux qubits, to the many-junction fluxonium. Here we consider the q…
Hall Effect Gyrators and Circulators
Giovanni Viola, David P. DiVincenzo
The electronic circulator, and its close relative the gyrator, are invaluable tools for noise management and signal routing in the current generation of low-temperature microwave s…