Large Bragg Reflection from One-Dimensional Chains of Trapped Atoms Near a Nanoscale Waveguide
Large Bragg Reflection from One-Dimensional Chains of Trapped Atoms Near a Nanoscale Waveguide
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DOI：
10.1103/physrevlett.117.133603
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发表时间：
2016-09-23
影响因子：
8.6
通讯作者：
Laurat, Julien
中科院分区：
文献类型：
--
作者：
Corzo, Neil V.;Gouraud, Baptiste;Laurat, Julien
我们报告了一个大的布拉格反射的实验观察，从附近的一维纳米波导捕获冷原子阵列。通过使用一个光学晶格在倏逝场周围的周期几乎相称的谐振波长的电光晶体，我们观察到高达75%的反射率的导模。每个原子都表现为部分反射镜，大约2000个原子的有序链足以实现有效的布拉格镜。测量的反射光谱作为一个功能的晶格周期和探测偏振的报告。后者显示了纳米级波导的手征特性对这种反射的影响。在耦合到自旋系统的一维波导中控制光子传输的能力将使新的量子网络能力和对远程相互作用产生的多体效应的研究成为可能。
We report experimental observations of a large Bragg reflection from arrays of cold atoms trapped near a one-dimensional nanoscale waveguide. By using an optical lattice in the evanescent field surrounding a nanofiber with a period nearly commensurate with the resonant wavelength, we observe a reflectance of up to 75% for the guided mode. Each atom behaves as a partially reflecting mirror and an ordered chain of about 2000 atoms is sufficient to realize an efficient Bragg mirror. Measurements of the reflection spectra as a function of the lattice period and the probe polarization are reported. The latter shows the effect of the chiral character of nanoscale waveguides on this reflection. The ability to control photon transport in 1D waveguides coupled to spin systems would enable novel quantum network capabilities and the study of many-body effects emerging from long-range interactions.