Second-harmonic generation in subwavelength graphene waveguides
arXiv:1408.0555 · doi:10.1103/PhysRevB.90.165433
Abstract
We suggest a novel approach for generating second-harmonic radiation in subwavelength graphene waveguides. We demonstrate that quadratic phase matching between the plasmonic guided modes of different symmetries can be achieved in a planar double-layer geometry when conductivity of one of the layers becomes spatially modulated. We predict theoretically that, owing to graphene nonlocal conductivity, the second-order nonlinear processes can be actualized for interacting plasmonic modes with an effective grating coupler to allow external pumping of the structure and output of the radiation at the double frequency.
5 pages, 3 figures
References in corpus (9)
- Graphene plasmonics
- Graphene Plasmonics for Terahertz to Mid-Infrared Applications
- Graphene Plasmonics: Challenges and Opportunities
- Space-time dispersion of graphene conductivity
- A Primer on Surface Plasmon-Polaritons in Graphene
- Graphene supports the propagation of subwavelength optical solitons
- Nonlinear graphene plasmonics: amplitude equation
- Graphene-based polaritonic crystal
- Light scattering by a medium with a spatially modulated optical conductivity: the case of graphene