Abstract
Optically detected magnetic resonance using nitrogen-vacancy (NV) colour centres in diamond is a leading modality for nanoscale magnetic field imaging, as it provides single electron spin sensitivity, three-dimensional resolution better than 1nm (ref. 5) and applicability to a wide range of physical and biological samples under ambient conditions. To date, however, NV-diamond magnetic imaging has been performed using 'real-space' techniques, which are either limited by optical diffraction to ∼250nm resolution or require slow, point-by-point scanning for nanoscale resolution, for example, using an atomic force microscope, magnetic tip, or super-resolution optical imaging. Here, we introduce an alternative technique of Fourier magnetic imaging using NV-diamond. In analogy with conventional magnetic resonance imaging (MRI), we employ pulsed magnetic field gradients to phase-encode spatial information on NV electronic spins in wavenumber or 'k-space' followed by a fast Fourier transform to yield real-space images with nanoscale resolution, wide field of view and compressed sensing speed-up.
| Original language | American English |
|---|---|
| Pages (from-to) | 859-864 |
| Number of pages | 6 |
| Journal | Nature Nanotechnology |
| Volume | 10 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1 Oct 2015 |
Bibliographical note
Funding Information:This work was supported by the National Science Foundation, and the Multidisciplinary University Research Initiative (MURI) QuISM and Defense Advanced Research Projects Agency (DARPA) QuASAR programmes. The authors acknowledge the provision of diamond samples by Element 6 and helpful technical discussions with M. Sarracanie, M. Rosen, D. Phillips, A. Glenday and B. Haussmann.
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