论文标题
单个光子波前拆分干扰:动作中光量子的说明
Single photon wavefront-splitting interference: An illustration of the light quantum in action
论文作者
论文摘要
我们提出了基于单光子干扰的教科书实验的新实现,该实验基于钻石纳米晶体中的单色中心的脉冲,光学激发的光致发光。干涉是通过菲涅尔(Fresnel)的二倍主义来创建的,并通过使用加强的CCD摄像头注册“单光量点击”来观察。该成像探测器还提供了一部实时电影,讲述了单光环边缘的堆积。我们对遵循一个或另一个干扰路径的光子敏感的两个检测器进行第二次实验。然后,从这两条路径中的检测之间没有时间巧合获得了单个光子行为的证据。
We present a new realization of the textbook experiment consisting in single-photon interference based on the pulsed, optically excited photoluminescence of a single colour centre in a diamond nanocrystal. Interferences are created by wavefront-splitting with a Fresnel's biprism and observed by registering the "single-photon clicks" with an intensified CCD camera. This imaging detector provides also a real-time movie of the build-up of the single-photon fringes. We perform a second experiment with two detectors sensitive to photons that follow either one or the other interference path. Evidence for single photon behaviour is then obtained from the absence of time coincidence between detections in these two paths.