Light scattering by a medium with a spatially modulated optical conductivity: the case of graphene

Abstract

We describe light scattering from a graphene sheet having a modulated optical conductivity. We show that such modulation enables the excitation of surface plasmon-polaritons by an electromagnetic wave impinging at normal incidence. The resulting surface plasmon-polaritons are responsible for a substantial increase of electromagnetic radiation absorption by the graphene sheet. The origin of the modulation can be due either to a periodic strain field or to adatoms (or absorbed molecules) with a modulated adsorption profile.

http://iopscience.iop.org/0953-8984/24/24/245303

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• Resonant plasmonic effects in periodic graphene antidot arrays
• Tunable graphene-based polarizer
• Confined Plasmons in Graphene Microstructures: Experiments and Theory
• Modeling the Excitation of Graphene Plasmons in Periodic Grids of Graphene Ribbons: An Analytical Approach
• Second-harmonic generation in subwavelength graphene waveguides
• Optical signatures of nonlocal plasmons in graphene
• Influence of electric and magnetic fields and $\sigma$-edge bands on the electronic and optical spectra of graphene nanoribbons
• Non-local quantum effects in plasmons of graphene superlattices