Publications Details

Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers

Kehayias, Pauli M.; Turner, M.J.; Trubko, R.; Schloss, J.M.; Hart, C.A.; Wesson, M.; Glenn, D.R.; Walsworth, R.L.

We present a micrometer-resolution and millimeter-field-of-view stress imaging method for diamonds containing a thin surface layer of nitrogen vacancy (NV) color 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 stress imaging is a useful and direct way to assess these effects. This new tool for mapping stress in diamond will aid optimization of NV-diamond sensing, with wide-ranging applications in the physical and life sciences.