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
The photon transport in a coupled-resonator waveguide coupled to a two-mode nanocavity embedded with a three-level emitter is investigated.The transmission and reflection amplitudes are obtained by using the discrete ...The photon transport in a coupled-resonator waveguide coupled to a two-mode nanocavity embedded with a three-level emitter is investigated.The transmission and reflection amplitudes are obtained by using the discrete coordinates approach.We show that the coherent transport properties of a single photon can be well controlled by detuning the coupling strength between the two-mode nanocavity and the emitter,and the coupling strength between the nanocavity and the coupled-resonator waveguide. These results may be useful for the design of photonic devices such as optical filters.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.
基金Supported by the National Natural Science Foundation of China under Grant Nos 11004001,11105001 and 11104057the Key Project of Chinese Ministry of Education(No 212076)the Anhui Provincial Natural Science Foundation under Grant No 1208085QA09.
文摘The photon transport in a coupled-resonator waveguide coupled to a two-mode nanocavity embedded with a three-level emitter is investigated.The transmission and reflection amplitudes are obtained by using the discrete coordinates approach.We show that the coherent transport properties of a single photon can be well controlled by detuning the coupling strength between the two-mode nanocavity and the emitter,and the coupling strength between the nanocavity and the coupled-resonator waveguide. These results may be useful for the design of photonic devices such as optical filters.
