论文标题
使用冷原子射频磁力计的磁感应成像
Magnetic Induction Imaging with a cold-atom radio-frequency magnetometer
论文作者
论文摘要
静态或射频\ textsc {（rf）}磁场的敏感检测对于许多基本研究和应用至关重要。在这里，我们演示了基于冷原子的\ textsc {rf}磁力计在执行小金属物体的{1-D和2-D成像}时的操作。它基于冷$^{85} $ rb原子样本，并在没有主动场稳定的非屏蔽环境中运行。它显示出高达$ 200 \，\ rm {pt}/\ sqrt {\ rm hz} $的敏感性我们系统的特征使其成为在民用和工业监视中应用的良好候选人。
The sensitive detection of either static or radio-frequency \textsc{(rf)} magnetic fields is essential to many fundamental studies and applications. Here, we demonstrate the operation of a cold-atom-based, \textsc{rf} magnetometer in performing {1-D and 2-D imaging} of small metallic objects. It is based on a cold $^{85}$Rb atomic sample, and operates in an unshielded environment with no active field stabilization. It shows a sensitivity up to $200\, \rm{pT}/\sqrt{\rm Hz}$ in the $5-35\, \rm{kHz}$ range bandwidth and can resolve a cut $0.4\, \rm{mm}$ wide in a $0.8\, \rm{mm}$ thick metallic foil. The characteristics of our system make it a good candidate for applications in civil and industrial surveillance.
