Plasmons in graphene on uniaxial substrates
arXiv:1312.4312 · doi:10.1063/1.4860576
Abstract
Placing graphene on uniaxial substrates may have interesting application potential for graphene-based photonic and optoelectronic devices. Here we analytically derive the dispersion relation for graphene plasmons on uniaxial substrates and discuss their momentum, propagation length and polarization as a function of frequency, propagation direction and both ordinary and extraordinary dielectric permittivities of the substrate. We find that the plasmons exhibit an anisotropic propagation, yielding radially asymmetric field patterns when a point emitter launches plasmons in the graphene layer.
5 pages, 4 figures
References in corpus (9)
- Graphene plasmonics
- Dyadic Green's Functions and Guided Surface Waves for a Surface Conductivity Model of Graphene
- Dielectric function, screening, and plasmons in 2D graphene
- Manipulating infrared photons using plasmons in transparent graphene superlattices
- Dynamical polarization of graphene at finite doping
- Mid-infrared plasmons in scaled graphene nanostructures
- A Primer on Surface Plasmon-Polaritons in Graphene
- Thermo-Plasma Polariton within Scaling Theory of Single-Layer Graphene
- Exact solution for square-wave grating covered with graphene: Surface plasmon-polaritons in the THz range