Transition to strong coupling regime for quantum emitters coupled to a plasmonic resonator

D. T. Latiker; T. V. Shahbazyan

doi:10.1117/12.2568079

20 August 2020 Transition to strong coupling regime for quantum emitters coupled to a plasmonic resonator

D. T. Latiker, T. V. Shahbazyan

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 114600U (2020) https://doi.org/10.1117/12.2568079
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

We present a model for exciton-plasmon coupling based on energy exchange mechanism between quantum emitters (QE) and localized surface plasmons in metal-dielectric structures. Plasmonic correlations between QEs give rise to a collective state exchanging its energy cooperatively with a resonant plasmon mode. By defining carefully the plasmon mode volume for a QE ensemble, we obtain a relation between the QE-plasmon coupling and the cooperative energy transfer rate that is expressed in terms of local fields. For a single QE near a sharp metal tip, we find analytically the enhancement factor for the QE-plasmon coupling relative to the QE coupling to a cavity mode. For QEs distributed in an extended region enclosing a plasmonic structure, we find that the ensemble QE-plasmon coupling saturates to a universal value independent on system size and shape, consistent with the experiment.

Citation Download Citation

D. T. Latiker and T. V. Shahbazyan "Transition to strong coupling regime for quantum emitters coupled to a plasmonic resonator", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 114600U (20 August 2020); https://doi.org/10.1117/12.2568079

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