Presentation
20 August 2020 Nonlocal and quantum finite-size effects in guided graphene plasmons
Author Affiliations +
Abstract
We study propagating plasmons in 1-D graphene nanoribbons through rigorous quantum-mechanical simulations that account for nonlocal, quantum finite-size, and edge-termination effects in the optical response. Our simulations reveal a strong dependence on such phenomena under excitation by fields carrying high optical momenta components along the direction of transverse symmetry in both the linear and nonlinear optical response, where in the latter case second-order nonlinear phenomena manifest with high efficiency due to the breaking of inversion symmetry. These findings motivate the application of graphene nanostructures towards actively-tunable nonlinear plasmonic conduits in nanophotonic circuitry.
Conference Presentation
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Álvaro Rodríguez Echarri, F. Javier García de Abajo, and Joel Cox "Nonlocal and quantum finite-size effects in guided graphene plasmons", Proc. SPIE 11471, Quantum Nanophotonic Materials, Devices, and Systems 2020, 1147109 (20 August 2020); https://doi.org/10.1117/12.2568680
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KEYWORDS
Graphene

Plasmons

Nanostructuring

Band structure simulations

Carbon

Metals

Nanophotonics

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