Kolchin Pavel, Du Shengwang, Belthangady Chinmay, Yin G Y, Harris S E
Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
Phys Rev Lett. 2006 Sep 15;97(11):113602. doi: 10.1103/PhysRevLett.97.113602. Epub 2006 Sep 12.
We describe a generator of narrow-band paired photons. A single retroreflected Ti:sapphire laser is used to cool, render transparent, and parametrically pump a cloud of (87)Rb atoms. We attain a paired-photon generation rate into opposing fibers of 600 counts/s with an intensity correlation function that has a width of 5 ns, and violates the Cauchy-Schwartz criteria by a factor of 2000.
我们描述了一种窄带成对光子发生器。使用单个后向反射钛宝石激光器来冷却、使其透明并对一团（87）Rb原子进行参量泵浦。我们实现了向相对光纤的成对光子产生率为600计数/秒，其强度相关函数的宽度为5纳秒，并且违反柯西 - 施瓦茨准则达2000倍。
