一维波导与嵌入原子的微腔耦合的单光子输运

Single-photon Transport Coupled by an One-dimensional Waveguide and Microcavity Embedded in Atom

分析单模波导与两个嵌入了二能级原子微腔耦合的单光子输运问题.用实空间方法精确求解单光子透射和反射振幅.结果表明对于腔模-腔模耦合系数,原子-原子耦合强度以及原子-腔模的相互作用强度的调制会影响系统的单光子散射特性,同时微腔与波导耦合点之间的距离会影响波导内干涉效应,从而改变系统的透射率和反射率.

In this paper,the single-photon transport in a single-mode waveguide coupled with two microcavities embedded in two-level atoms is analyzed.The transmission and reflection amplitudes of a single photon are solved accurately by using the real space method.The results show that the modulation of the cavity-cavity mode coupling coefficient,the atomic-atomic coupling strength and the atomic-cavity mode interaction strength will affect the single photon scattering characteristics of the system.At the same time,the distance between the micro-cavity and the waveguide coupling point will affect the interference effect in the waveguide,thus changing the transmission and reflectivity of the system.