Single-photon scattering in a pair of coupled-resonator arrays of waveguides linked by a nanocavity embedded with a two-level system is investigated theoretically.By using the discrete coordinates approach,we deduce t...Single-photon scattering in a pair of coupled-resonator arrays of waveguides linked by a nanocavity embedded with a two-level system is investigated theoretically.By using the discrete coordinates approach,we deduce the analytical expressions for the transmission and reflection amplitudes.The calculations reveal that the transport properties of the single photon can be controlled by adjusting the coupled strength between the nanocavity and the coupled-resonator array.Quantum switching and a 1/4 beam splitter for the band-edge photon based on this structure are also discussed.展开更多
基金the National Natural Science Foundation of China under Grant Nos 11004001 and 11105001the Key Project of the Ministry of Education of China under Grant No 212076the Anhui Provincial Natural Science Foundation under Grant No 1208085QA09.
文摘Single-photon scattering in a pair of coupled-resonator arrays of waveguides linked by a nanocavity embedded with a two-level system is investigated theoretically.By using the discrete coordinates approach,we deduce the analytical expressions for the transmission and reflection amplitudes.The calculations reveal that the transport properties of the single photon can be controlled by adjusting the coupled strength between the nanocavity and the coupled-resonator array.Quantum switching and a 1/4 beam splitter for the band-edge photon based on this structure are also discussed.