论文标题
在随机定向的微钻石中，具有氮气接种中心的宽场磁力测定法
Wide-field magnetometry with nitrogen-vacancy centers in randomly oriented micro-diamonds
论文作者
论文摘要
近年来，钻石中具有氮的颜色中心的磁力测定法引起了人们的兴趣。对于许多应用，必须绝对了解磁场的三维方向。常规的磁力测量值通常用NV集合在带有薄的NV层的散装钻石或钻石尖端形式的扫描探针中进行，这需要光滑的样品表面和探测器的接近度，通常会限制感应功能。在这里，我们提出了一种确定磁场矢量相对于钻石晶体晶格的三维方向的方法。我们证明，沉积在平面表面上的任意定向的亚微米大小的钻石粉末中的NV中心可用于感测磁场。我们的工作可以扩展到不规则的表面，这表明了基于纳米原子的光子传感器的有希望的路径。
Magnetometry with nitrogen-vacancy color centers in diamond has gained significant interest among researchers in recent years. Absolute knowledge of the three-dimensional orientation of the magnetic field is necessary for many applications. Conventional magnetometry measurements are usually performed with NV ensembles in a bulk diamond with a thin NV layer or a scanning probe in the form of a diamond tip, which requires a smooth sample surface and proximity of the probing device, often limiting the sensing capabilities. Here, we present a method for determining the three-dimensional orientation of the magnetic field vector relative to the diamond crystal lattice. We demonstrate that NV centers in arbitrarily oriented submicrometer-sized diamond powder deposited on a planar surface can be used for sensing the magnetic field. Our work can be extended to irregular surfaces, which shows a promising path for nanodiamond-based photonic sensors.
