Article ID Journal Published Year Pages File Type
5427059 Journal of Quantitative Spectroscopy and Radiative Transfer 2017 8 Pages PDF
Abstract

•Decay rate in a dielectric graphene coated wire.•Localized surface plasmons.•Excitation of multipolar resonances.

This work analyzes the emission and radiation properties of a single optical emitter embedded in a graphene-coated subwavelength wire. We discuss the modifications of the spontaneous emission rate and the radiation efficiency as a function of the position and orientation of the dipole inside the wire. Our results show that these quantities can be enhanced by several orders of magnitude when the emission frequency coincides with one of the resonance frequencies of the graphene-coated wire. In particular, high-order plasmon resonances are excited when the emitter is moved from the wire center. Modifications resulting from varying the orientation of the dipole in the near field distribution and in the far field intensities are shown.

Related Topics
Physical Sciences and Engineering Chemistry Spectroscopy
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