Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources

@article{Francs2016PlasmonicPF,
  title={Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources},
  author={G'erard Colas des Francs and Julien Barthes and Alexandre Bouhelier and Jean-Claude Weeber and Alain Dereux and Aur{\'e}lien Cuche and Christian Girard},
  journal={Journal of Optics},
  year={2016},
  volume={18}
}
The Purcell factor Fp is a key quantity in cavity quantum electrodynamics (cQED) that quantifies the coupling rate between a dipolar emitter and a cavity mode. Its simple form F p ∝ Q / V unravels the possible strategies to enhance and control light–matter interaction. Practically, efficient light–matter interaction is achieved thanks to either (i) high quality factor Q at the basis of cQED or (ii) low modal volume V at the basis of nanophotonics and plasmonics. In the last decade, strong… 
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