论文标题
一维耦合谐振器波导中具有二阶非线性耦合到含有二级原子和Kerr非线性的纳米腔内的单光子传输
Single-photon transport in one-dimensional coupled-resonator waveguide with second order nonlinearity coupling to a nanocavity containing a two-level atom and Kerr nonlinearity
论文作者
论文摘要
我们研究了一维波导耦合中的可控制的单光子散射，并通过二阶非线性材料在非cass构构中研究，其中额外的空腔嵌入了两级原子，并填充了Kerr-Nononlineareal材料。考虑到二阶非线性耦合，我们分析了三种不同的耦合形式的传输特性，如下所示：（i）两级原子在没有kerr--非固定性的情况下被激发。 （ii）Kerr-Noninearity在没有两级原子的情况下很兴奋。 （iii）两个两级原子和克尔 - 非线性都很兴奋。通过三种情况的离散坐标方法获得传输和反射幅度。结果表明，可以通过上述三种不同的耦合形式来调整传输属性，这表明我们的方案可以用作单个光子开关，以控制一维耦合谐振波引导中单个光子的传输和反射。我们将结果与[Phys。修订版A 85，053840（2012）]并找到优势。
We study controllable single photon scattering in a one-dimensional waveguide coupling with an additional cavity by second order nonlinear materials in a non-cascading configuration, where the additional cavity is embedded with two-level atom and filled with Kerr-nonlinear materials. Considering the second order nonlinear coupling, we analyze the transmission properties of the three different coupling forms as follows: (i) The two-level atom is excited without the Kerr-nonlinearity. (ii)The Kerr-nonlinearity is excited without the two-level atom. (iii) Both of the two-level atom and Kerr-nonlinearity are excited. The transmission and reflection amplitudes are obtained by the discrete coordinates approach for the three cases. The results showed that the transmission properties can be adjusted by the above three different coupling forms, which indicate our scheme can be used as a single photon switch to control the transmission and reflection of the single photon in the one-dimensional coupled resonant waveguide. We compared the results with [Phys. Rev. A 85, 053840(2012)] and find the advantages.
