Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections
arXiv:1711.04317 · doi:10.1016/j.jqsrt.2017.11.009
Abstract
We present a theoretical study of the spontaneous emission of a line dipole source embedded in a graphene--coated subwavelength wire of arbitrary shape. The modification of the emission and the radiation efficiencies are calculated by means of a rigorous electromagnetic method based on Green's second identity. Enhancement of these efficiencies is observed when the emission frequency coincides with one of the plasmonic resonance frequencies of the wire. The relevance of the dipole emitter position and the dipole moment orientation are evaluated. We present calculations of the near--field distribution for different frequencies which reveal the multipolar order of the plasmonic resonances.
Journal of Quantitative Spectroscopy and Radiative Transfer, 2017. arXiv admin note: text overlap with arXiv:1706.05609
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- Enhanced energy transfer via graphene-coated wire surface plasmons
- Light-matter interaction of a quantum emitter near a half-space graphene nanostructure
- Dispersion properties of plasmonic sub-wavelength elliptical wires wrapped with graphene