Wide-Field Strain Imaging with Preferentially-Aligned Nitrogen-Vacancy Centers in Polycrystalline Diamond

Abstract

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.

References in corpus (8)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Dynamic strain-mediated coupling of a single diamond spin to a mechanical resonator
• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species
• Perfect selective alignment of nitrogen-vacancy center in diamond
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• Alignment of the Diamond Nitrogen Vacancy Center by Strain Engineering
• Preferential orientation of NV defects in CVD diamond films grown on (113) substrates

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