Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers
Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers
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DOI：
10.1103/physrevb.100.174103
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发表时间：
2019-11-11
影响因子：
3.7
通讯作者：
Walsworth, R. L.
中科院分区：
文献类型：
--
作者：
Kehayias, P.;Turner, M. J.;Walsworth, R. L.
提出了一种毫米级分辨率的应力成像方法，用于测量表面含有氮空位（NV）中心的金刚石。在这种方法中，我们重建应力张量元素在一个二维的视野从NV光学检测磁共振（ODMR）光谱。我们使用这种技术来研究应力不均匀性如何影响NV磁力测量性能，并显示NV M-z，M-k成像是评估这些影响的有用和直接的方法。这种用于映射金刚石应力的工具将有助于优化NV金刚石传感，在物理和生命科学中具有广泛的应用。
We present a micrometer-scale-resolution stress imaging method with millimeter field-of-view for diamonds containing a thin surface layer of nitrogen-vacancy (NV) centers. In this method, we reconstruct stress tensor elements over a two-dimensional field of view from NV optically detected magnetic resonance (ODMR) spectra. We use this technique to study how stress inhomogeneity affects NV magnetometry performance and show how NV M-z,M-k imaging is a useful and direct way to assess these effects. This tool for mapping stress in diamond will aid optimization of NV-diamond sensing, with wide-ranging applications in the physical and life sciences.