Graphene as Gain Medium for Broadband Lasers
arXiv:1409.8182 · doi:10.1103/PhysRevB.92.085407
Abstract
In contrast to conventional structures, efficient non-radiative carrier recombination counteracts the appearance of optical gain in graphene. Based on a microscopic and fully quantum-mechanical study of the coupled carrier, phonon, and photon dynamics in graphene, we present a strategy to obtain a long-lived gain: Integrating graphene into a photonic crystal nanocavity and applying a high-dielectric substrate gives rise to pronounced coherent light emission suggesting the design of graphene-based laser devices covering a broad spectral range.
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- Carrier dynamics in graphene: ultrafast many-particle phenomena
- Tamm Cavity in the Terahertz Spectral Range
- Recent advances in terahertz photonic technologies based on graphene and their applications
- Proposal for a tunable graphene-based terahertz Landau-level laser
- Cyclotron Resonance Gain for FIR and THz Radiation in Graphene
- Electroluminescence of the graphene 2D semi-metal