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Related Experiment Video

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Photon emission rate engineering using graphene nanodisc cavities.

Anshuman Kumar, Kin Hung Fung, M T Homer Reid

    Optics Express
    |March 26, 2014
    PubMed
    Summary

    We studied plasmon modes in stacked graphene discs. Tuning Fermi levels and emitter placement allows control over quantum emitter decay rates, enhancing or suppressing radiative efficiency.

    Area of Science:

    • Plasmonics
    • Quantum Optics
    • Condensed Matter Physics

    Background:

    • Graphene plasmonics offers unique light-matter interaction possibilities.
    • Controlling quantum emitter properties is crucial for quantum technologies.

    Purpose of the Study:

    • To systematically investigate plasmon modes in vertically stacked graphene discs.
    • To explore the engineering of quantum emitter decay rates within this system.

    Main Methods:

    • Quasistatic approximation for modeling eigenmodes.
    • Eigen-response theory for coupling analysis.
    • Comparison of semi-analytical calculations with full-wave simulations.

    Main Results:

    • Accurate modeling of plasmon modes in stacked graphene discs.

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  • Demonstrated control over quantum emitter decay rates via Fermi level tuning.
  • Enhanced radiative efficiency by coupling to bright plasmon modes.
  • Suppressed radiative efficiency by coupling to dark plasmon modes.

    • Conclusions:

    • Vertically stacked graphene discs provide a tunable platform for plasmonic applications.
    • Precise control over quantum emitter radiative properties is achievable.
    • This system holds potential for advancements in quantum information processing and nanophotonics.