Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027, USA.
Rev Sci Instrum. 2023 Jan 1;94(1):013202. doi: 10.1063/5.0131429.
We report on the design and characterization of a cold atom source for strontium (Sr) based on a two-dimensional magneto-optical trap (MOT) that is directly loaded from the atom jet of a dispenser. We characterize the atom flux of the source by measuring the loading rate of a three-dimensional MOT. We find loading rates of up to 10 atoms per second. The setup is compact, easy to construct, and has low power consumption. It addresses the longstanding challenge of reducing the complexity of cold beam sources for Sr, which is relevant for optical atomic clocks, quantum simulation, and computing devices based on ultracold Sr.
我们报告了一种基于二维磁光阱（MOT）的冷原子源的设计和特性，该原子源可以直接从分配器的原子喷射中装载。我们通过测量三维 MOT 的装载率来表征源的原子通量。我们发现装载率高达每秒 10 个原子。该装置结构紧凑，易于构建，功耗低。它解决了减少 Sr 冷束源复杂性的长期挑战，这对于光学原子钟、量子模拟和基于超冷 Sr 的计算设备都具有重要意义。
