Single-Molecule Vacuum Rabi Splitting: Four-Wave Mixing and Optical Switching at the Single-Photon Level
Single-Molecule Vacuum Rabi Splitting: Four-Wave Mixing and Optical Switching at the Single-Photon Level
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DOI：
10.1103/physrevlett.127.133603
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发表时间：
2021-09-24
影响因子：
8.6
通讯作者：
Sandoghdar, Vahid
中科院分区：
文献类型：
--
作者：
Pscherer, Andre;Meierhofer, Manuel;Sandoghdar, Vahid
单个量子发射器可以具有非常强的固有非线性，但其非线性效应的总体前景受到与入射光子有效耦合的挑战的阻碍。另一方面，常见的非线性光学材料易于耦合，但体积庞大，严重限制了光子系统的小型化。在这封信中，我们表明单个有机分子在腔量子电动力学的强耦合机制中充当极其有效的非线性光学元件。我们报告了非线性信号生成和全光开关中的单光子灵敏度。我们的工作促进了分子在诸如以极低功率运行的集成光子电路等应用中的使用。
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 Letter, 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.