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Wide-field strain imaging with preferentially aligned nitrogen-vacancy centers in polycrystalline diamond

MetadataDetails
Publication Date2016-12-19
JournalNew Journal of Physics
AuthorsMatthew E. Trusheim, Dirk Englund
Citations69

We report on wide-field optically detected magnetic resonance imaging of nitrogen-vacancy centers (NVs) in type IIa polycrystalline diamond. These studies reveal a heterogeneous crystalline environment that produces a varied density of NV centers, including preferential orientation within some individual crystal grains, but preserves long spin coherence times. Using the native NVs as nanoscale sensors, we introduce a 3-dimensional strain imaging technique with high sensitivity ( $< 10^{-5}$ Hz$^{-1/2}$) and diffraction-limited resolution across a wide field of view.