Arai, K.Belthangady, ChinmayZhang, HuiliangBar-Gill, N.Devience, StephenCappellaro, P.Yacoby, AmirWalsworth, Ronald2016-02-092015Arai, K., C. Belthangady, H. Zhang, N. Bar-Gill, S. J. DeVience, P. Cappellaro, A. Yacoby, and R. L. Walsworth. 2015. “Fourier Magnetic Imaging with Nanoscale Resolution and Compressed Sensing Speed-up Using Electronic Spins in Diamond.” Nature Nanotechnology 10 (10) (August 10): 859–864. doi:10.1038/nnano.2015.171.1748-3387http://nrs.harvard.edu/urn-3:HUL.InstRepos:25139280Optically-detected magnetic resonance using Nitrogen Vacancy (NV) color centres in diamond is a leading modality for nanoscale magnetic field imaging,1-3 as it pro-vides single electron spin sensitivity,4 three-dimensional resolution better than 1 nm,5 and applicability to a wide range of physical6-8 and biological9 samples under ambient conditions. To date, however, NV-diamond magnetic imaging has been performed using “real space” techniques, which are either limited by optical diffrac-tion to ≈250 nm resolution10 or require slow, point-by-point scanning for nanoscale resolution, e.g., using an atomic force microscope,11 magnetic tip,5 or super-resolution optical imaging.12 Here we introduce an alternative technique of Fourier magnetic imaging using NV-diamond. In analogy with conventional magnetic reso-nance imaging (MRI), we employ pulsed magnetic field gradients to phase-encode spatial information on NV electronic spins in wavenumber or “k-space”13 followed by a fast Fourier transform to yield real-space images with nanoscale resolution, wide field-of-view (FOV), and compressed sensing speed-up.en-USJournal Article2016-02-0910.1038/nnano.2015.171