Quantum emitter dipole-dipole interactions in nanoplasmonic systems

Marek Nečada*, Jani Petri Martikainen, Päivi Törmä

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
250 Downloads (Pure)

Abstract

We introduce a generalized Dicke-like model to describe two-level systems coupled with a single bosonic mode. In addition, the two-level systems mutually interact via direct dipole-dipole interaction. We apply the model to an ensemble of dye molecules coupled to a plasmonic excitation in a metallic nanoparticle and study how the dipole-dipole interaction and configurational randomness introduced to the system affect the energy spectra. Comparing the system eigenenergies obtained by our model with the light spectra from a multiple-scattering simulation, we suggest a way to identify dark modes in our model. Finally, we perform a parameter sweep in order to determine the scaling properties of the system and to classify the regions of the parameter space where the dipole-dipole interactions can have significant effects.

Original languageEnglish
Article number1740006
Pages (from-to)1-21
JournalInternational Journal of Modern Physics B
Volume31
Issue number24
DOIs
Publication statusPublished - 30 Sep 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Dicke model
  • dipole-dipole interactions
  • nano-optics
  • nanoplasmics
  • Quantum emitters

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