论文标题
具有光光栅格扫描原子计的快速电磁感应成像
Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer
论文作者
论文摘要
我们提出了一个设备，以克服电磁感应成像（EMI）技术中机械栅格扫描的局限性，而不是在射频原子磁力计（RF-AM）的蒸气中进行2D光学栅格扫描。一个大的立方体87RB蒸气电池被用作RF-AM的介质，并通过大声探针在细胞中翻译的泵和探头梁。该技术显示可在细胞体积上提供可靠且可重复的磁性测量结果，并成功地用EMI解析导电目标。光栅扫描消除了缓慢的机械致动的局限性，快速成像程序是以40 ms/像素的速率颁布的解决导电目标。
We present an apparatus to overcome the limitations of mechanical raster-scanning in electromagnetic induction imaging (EMI) techniques by instead performing a 2D optical raster-scan within the vapour cell of a radio-frequency atomic magnetometer (RF-AM). A large cuboidal 87Rb vapour cell is employed to act as the medium of an RF-AM with the pump and probe beams translated in the cell via acousto-optics. The technique is shown to give robust and repeatable magnetic measurements over the cell volume and successfully resolves conductive targets with EMI. Optical raster-scanning removes the limitation of slow mechanical actuation and a fast imaging procedure is enacted resolving conductive targets at a rate of 40 ms/pixel.
