Dual-frequency tunable unidirectional reflectionless propagation in non-Hermitian graphene plasmonic waveguide system
Sign Up to like & getrecommendations! Published in 2020 at "Optical Materials"
DOI: 10.1016/j.optmat.2020.110515
Abstract: Abstract We theoretically investigate a dynamically tunable unidirectional reflectionlessness phenomenon by applying external voltage in a graphene plasmonic waveguide system based on far-field coupling among three resonators. The system consists of three wing-shaped resonators, which… read more here.
Keywords: tunable unidirectional; graphene plasmonic; system; graphene ... See more keywords
Tunable Unidirectional Guided Resonances in Momentum Space via a Si-Ge2Sb2Te5 Metasurface
Sign Up to like & getrecommendations! Published in 2025 at "Photonics"
DOI: 10.3390/photonics12111121
Abstract: Unidirectional guided resonances (UGRs) in periodic metasurfaces have recently attracted research interest because of their ability to achieve unidirectional radiation in all-dielectric structures without metal reflectors, which offers new possibilities for efficient grating couplers and… read more here.
Keywords: tunable unidirectional; resonances momentum; guided resonances; gst phase ... See more keywords