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Single-molecule vacuum Rabi splitting: four-wave mixing and optical switching at the single-photon level

MPG-Autoren
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Pscherer,  André
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Cano,  Diego-Martin
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Utikal,  Tobias
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Götzinger,  Stephan
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Sandoghdar,  Vahid
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;
Sandoghdar Division, Max-Planck-Zentrum für Physik und Medizin, Max Planck Institute for the Science of Light, Max Planck Society;

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Zitation

Pscherer, A., Meierhofer, M., Wang, D., Kelkar, H., Cano, D.-M., Utikal, T., et al. (2021). Single-molecule vacuum Rabi splitting: four-wave mixing and optical switching at the single-photon level. Physical Review Letters, 127: 133603. doi:10.1103/PhysRevLett.127.133603.


Zitierlink: https://hdl.handle.net/21.11116/0000-0008-AEE2-5
Zusammenfassung
A single quantum emitter can possess a very strong intrinsic nonlinearity, but its overall promise for nonlinear effects is hampered by the challenge of efficient coupling to incident photons. Common nonlinear optical materials, on the other hand, are easy to couple to but are bulky, imposing a severe limitation on the miniaturization of photonic systems. In this work, we show that a single organic molecule acts as an extremely efficient nonlinear optical element in the strong coupling regime of cavity quantum electrodynamics. We report on single-photon sensitivity in nonlinear signal generation and all-optical switching. Our work promotes the use of molecules for applications such as integrated photonic circuits, operating at very low powers.