YOUNGS DOUBLE-SLIT EXPERIMENT WITH ATOMS - A SIMPLE ATOM INTERFEROMETER
YOUNGS DOUBLE-SLIT EXPERIMENT WITH ATOMS - A SIMPLE ATOM INTERFEROMETER
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DOI：
10.1103/physrevlett.66.2689
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发表时间：
1991-05-27
影响因子：
8.6
通讯作者：
MLYNEK, J
中科院分区：
文献类型：
--
作者：
CARNAL, O;MLYNEK, J
本文介绍了一种基于杨氏双缝装置的原子干涉仪。 一束亚稳态氦原子的超音速束穿过一个2 μ m宽的薄金箔狭缝。 该横向相干光束撞击在第二微加工传输结构上，该第二微加工传输结构由横向距离为8 μ m的两个1 μ m宽的狭缝组成。 这个双缝定义了原子到达探测器狭缝的两条可能路径。 观察到的条纹的良好的可见性应该使得在不到10分钟的时间内测量1/3 rad的干涉仪中的微分相移成为可能。
An atomic interferometer based on a Young's-type double-slit arrangement has been demonstrated. A supersonic beam of metastable helium atoms passes through a 2-mu-m-wide slit in a thin gold foil. This transversely coherent beam impinges on a second microfabricated transmission structure, consisting of two 1-mu-m-wide slits at a lateral distance of 8-mu-m. This double slit defines two possible paths on which the atoms can reach the detector slit. The good visibility of the observed fringes should make it possible to measure differential phase shifts in the interferometer of 1/3 rad in less than 10 min.