Topological scattering resonances at ultralow frequencies
S. Ali Hassani Gangaraj, Constantinos Valagiannopoulos, Francesco Monticone
Abstract
The authors demonstrate a new type of scattering resonances in nonreciprocal plasmonic systems, which may exist, in principle, at arbitrarily low frequencies. These new plasmonic resonances originate from the unidirectional and topological surface plasmon polaritons supported by the internal interfaces of the scatterer.
Topics & Concepts
ScatteringPlasmonPhysicsSurface plasmon polaritonPolaritonTopology (electrical circuits)Surface (topology)Surface plasmonOpticsGeometryMathematicsCombinatoricsPlasmonic and Surface Plasmon ResearchPhotonic Crystals and ApplicationsMetamaterials and Metasurfaces Applications