Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in nonlinear plasmonic cavity.

@article{Piryatinski2022DegeneratePD,
  title={Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in nonlinear plasmonic cavity.},
  author={Andrei Piryatinski and Maxim Sukharev},
  journal={Nanotechnology},
  year={2022}
}
We study the effect of degenerate parametric down-conversion (DPDC) in an ensemble of two-level quantum emitters (QEs) coupled via near-field interactions to a single surface plasmon (SP) mode of a nonlinear plasmonic cavity. For this purpose, we develop a quantum driven-dissipative model capturing non-equilibrium dynamics of the system in which incoherently pumped QEs have transition frequency tuned near the second-harmonic response of the SPs. Considering the strong coupling regime, i.e., the… 

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