Few-photon optical diode

Article

关键词: SINGLE QUANTUM-DOT;    WAVE-GUIDE;    CAVITY;    PLASMONS;   

DOI  :  10.1103/PhysRevB.81.155117

来源: SCIE

【 摘 要 】

We propose a scheme of realizing an optical diode at the few-photon level. The system consists of a one-dimensional waveguide coupled asymmetrically to a two-level system. The two or multiphoton transport in this system is strongly correlated. We derive exactly the single and two-photon current and show that the two-photon current is asymmetric for the asymmetric coupling. Thus the system serves as an optical diode which allows transmission of photons in one direction much more efficiently than the opposite.

【 授权许可】

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