Graphene nanoribbon based spaser
arXiv:1310.0136 · doi:10.1103/PhysRevB.88.235424
Abstract
A novel type of spaser with the net amplification of surface plasmons (SPs) in doped graphene nanoribbon is proposed. The plasmons in THz region can be generated in a dopped graphene nanoribbon due to nonradiative excitation by emitters like two level quantum dots located along a graphene nanoribbon. The minimal population inversion per unit area, needed for the net amplification of SPs in a doped graphene nanoribbon is obtained. The dependence of the minimal population inversion on the surface plasmon wavevector, graphene nanoribbon width, doping and damping parameters necessary for the amplification of surface plasmons in the armchair graphene nanoribbon is studied.
10 pages, 5 figures
References in corpus (15)
- The electronic properties of graphene
- Dielectric function, screening, and plasmons in 2D graphene
- Electronic States of Graphene Nanoribbons
- Optical properties of graphene
- Optical far-infrared properties of graphene monolayer and multilayers
- Space-time dispersion of graphene conductivity
- Singular-phase nanooptics: towards label-free single molecule detection
- Novel electric field effects on Landau levels in Graphene
- How perfect can graphene be?
- Dirac electronic states in graphene systems: Optical spectroscopy studies
- Charge accumulation at the boundaries of a graphene strip induced by a gate voltage: Electrostatic approach
- Plasmons in electrostatically doped graphene
- Graphene-based voltage-tunable coherent terahertz emitter
- Spaser chains
- Graphene-based photonic crystal
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- Self-consistent Description of Graphene Quantum Amplifier
- Dispersion properties of plasmonic sub-wavelength elliptical wires wrapped with graphene
- Doped Silicon Quantum Dots as Sources of Coherent Surface Plasmons
- Graphene Spaser Description by Rate Equations