Surface plasmons in graphene may provide an attractive alternative to noble-metal
plasmons due to their tighter confinement, peculiar dispersion, and longer propagation …

We study topologically protected four-wave mixing (FWM) interactions in a plasmonic
metasurface consisting of a periodic array of nanoholes in a graphene sheet, which exhibits …

Plasmons describe collective oscillations of electrons. They have a fundamental role in the
dynamic responses of electron systems and form the basis of research into optical …

This paper reviews recent advances in graphene active plasmonics for terahertz (THz)
device applications. Two-dimensional plasmons in graphene exhibit unique optoelectronic …

We propose a two-dimensional plasmonic platform—periodically patterned monolayer
graphene—which hosts topological one-way edge states operable up to infrared …

Plasmonic excitations, consisting of collective oscillations of the electron gas in a conductive
film or nanostructure coupled to electromagnetic fields, play a prominent role in photonics …

We demonstrate efficient terahertz (THz) modulation by coupling graphene strongly with a
broadband THz metasurface device. This THz metasurface, made of periodic gold slit arrays …

We propose an electrically tunable graphene-based metamaterial that shows a large
nonlinear optical response at THz frequencies. The responsible nonlinearity comes from the …

We report here a new type of plasmon resonance that occurs when graphene is connected
to a metal. These new plasmon modes offer the potential to incorporate a tunable plasmonic …

Unlike common metals, graphene can support transverse electric (TE) surface modes when
the imaginary part of its conductivity is negative. We have theoretically investigated and …