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Related Experiment Videos

Small slot waveguide rings for on-chip quantum optical circuits.

Nir Rotenberg, Pierre Türschmann, Harald R Haakh

    Optics Express
    |April 7, 2017
    PubMed
    Summary

    We show that small slot-waveguide rings can efficiently couple light to quantum emitters, enabling strong coupling and directional emission for quantum circuits.

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    Area of Science:

    • Quantum optics
    • Nanophotonics
    • Solid-state physics

    Background:

    • Nanophotonic interfaces are crucial for advancing quantum optical technologies.
    • Controlling light-matter interactions at the quantum level is key for quantum information processing.

    Purpose of the Study:

    • To investigate the interaction between quantum emitters and slot-waveguide rings.
    • To explore the potential for achieving high coupling efficiencies and emission enhancements.
    • To demonstrate control over coupling regimes (weak/strong) and directional emission.

    Main Methods:

    • Utilized finite element simulations to model nanophotonic structures.
    • Applied analytic quantum theory to analyze emitter-light interactions.
    • Investigated the impact of ring geometry and losses on system performance.

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    Main Results:

    • Predicted near-unity emitter-waveguide coupling efficiencies for rings with radii as small as 1.44 μm.
    • Achieved predicted emission enhancements of approximately 1300.
    • Demonstrated the ability to tune coupling regimes and observe Rabi oscillations.
    • Showcased directional emission with near-unity efficiency using slot waveguide rings.

    Conclusions:

    • Slot-waveguide rings offer a promising platform for integrated quantum optical technologies.
    • The demonstrated control over emitter-light interaction is vital for developing solid-state quantum circuits.
    • This research paves the way for advanced quantum devices utilizing various quantum emitters.