量子技术的光栅芯片。

Department of Physics, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK.

Sci Rep. 2017 Mar 24;7(1):384. doi: 10.1038/s41598-017-00254-0.

We have laser cooled 3 × 10Rb atoms to 3 μK in a micro-fabricated grating magneto-optical trap (GMOT), enabling future mass-deployment in highly accurate compact quantum sensors. We magnetically trap the atoms, and use Larmor spin precession for magnetic sensing in the vicinity of the atomic sample. Finally, we demonstrate an array of magneto-optical traps with a single laser beam, which will be utilised for future cold atom gradiometry.

我们使用微制造的光栅磁光阱（GMOT）将 3×10Rb 原子冷却到 3μK，这为未来在高精度紧凑型量子传感器中大规模部署铺平了道路。我们通过磁场捕获原子，并在原子样本附近利用拉莫尔进动进行磁传感。最后，我们展示了一种利用单束激光的磁光阱阵列，这将用于未来的冷原子梯度测量。