Magnetic imaging using NV-diamond: techniques & applications - Ronald Walsworth

Recorded from IQC's NanoMRI conference 2015. Ronald Walsworth of Harvard University describes progress in nanoscale magnetic imaging using Nitrogen-Vacancy (NV) centers in diamond. Techniques include shallow single NV sensors; wide-field (greater than 1 mm) imaging using dense NV surface layers; Fourier (k-space) imaging using pulsed magnetic field gradients and compressed sensing speed-up; Berry phase magnetometry; and spin-to-charge-state readout. Applications include nanoscale NMR and MRI down to single molecules and spins; studies of both static and dynamic magnetic signals from a wide variety of biological phenomena; and probing of magnetic materials relevant to Earth and planetary science and condensed matter physics.