Time-reversed two-photon interferometry for phase superresolution
Time-reversed two-photon interferometry for phase superresolution
复制标题
用于相位超分辨率的时间反演双光子干涉测量
DOI：
10.1103/physreva.88.063813
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发表时间：
2013
影响因子：
2.9
通讯作者：
and M. Kitano
中科院分区：
文献类型：
--
作者：
K. Ogawa;S. Tamate;H. Kobayashi;T. Nakanishi;and M. Kitano
在非平衡迈克尔逊干涉仪中，采用经典高斯激光脉冲，观察到了双光子相位超分辨。我们的工作是使用不平衡迈克尔逊干涉仪的双光子干涉实验的时间反转版本。实验测得的干涉图显示出双光子相位超分辨的高可见度。其相干长度约为输入激光脉冲的22倍。这是一个经典的模拟纠缠光子对的单光子和双光子相干长度之间的巨大差异。
We observed two-photon phase superresolution in an unbalanced Michelson interferometer with classical Gaussian laser pulses. Our work is a time-reversed version of a two-photon interference experiment using an unbalanced Michelson interferometer. A measured interferogram exhibits two-photon phase superresolution with a high visibility of. Its coherence length is about 22 times longer than that of the input laser pulses. It is a classical analog to the large difference between the one- and two-photon coherence lengths of entangled photon pairs.