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Fourier magnetic imaging with nanoscale resolution and compressed sensing speed-up using electronic spins in diamond

Author(s)
Belthangady, C.; Zhang, H.; Bar-Gill, N.; DeVience, S. J.; Yacoby, A.; Walsworth, R. L.; Cappellaro, Paola; Arai, K.; ... Show more Show less
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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 1 nm (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 ∼250 nm 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.
Date issued
2015-08
URI
http://hdl.handle.net/1721.1/106796
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Department of Physics
Journal
Nature Nanotechnology
Publisher
Nature Publishing Group
Citation
Arai, K. et al. “Fourier Magnetic Imaging with Nanoscale Resolution and Compressed Sensing Speed-up Using Electronic Spins in Diamond.” Nature Nanotechnology 10.10 (2015): 859–864.
Version: Original manuscript
ISSN
1748-3387
1748-3395

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