Electron paramagnetic resonance microscopy using spins in diamond under ambient conditions.

ABSTRACT: Magnetic resonance spectroscopy is one of the most important tools in chemical and bio-medical research. However, sensitivity limitations typically restrict imaging resolution to ~ 10 µm. Here we bring quantum control to the detection of chemical systems to demonstrate high-resolution electron spin imaging using the quantum properties of an array of nitrogen-vacancy centres in diamond. Our electron paramagnetic resonance microscope selectively images electronic spin species by precisely tuning a magnetic field to bring the quantum probes into resonance with the external target spins. This provides diffraction limited spatial resolution of the target spin species over a field of view of 50 × 50 µm² with a spin sensitivity of 10⁴ spins per voxel or ∼100 zmol. The abilit

SUBMITTER: Simpson DA 

PROVIDER: S-EPMC5587709 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature