Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 111, Issue 41, Pages 14669-14674Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1404907111
Keywords
superresolution microscopy; single-spin detection; diamond defect center; nitrogen-vacancy center
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Funding
- European Union
- Deutsche Forschungsgemeinschaft [Sonderforschungsbereich/TR21]
- Baden-wurttemberg stiftung gGmbH (Methoden fur die Lebenswissenschaften)
- Deutsche Forschungsgemeinschaft via Research Group 1493 Diamond Quantum Materials
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We experimentally demonstrate precision addressing of single-quantum emitters by combined optical microscopy and spin resonance techniques. To this end, we use nitrogen vacancy (NV) color centers in diamond confined within a few ten nanometers as individually resolvable quantum systems. By developing a stochastic optical reconstruction microscopy (STORM) technique for NV centers, we are able to simultaneously perform sub-diffraction-limit imaging and optically detected spin resonance (ODMR) measurements on NV spins. This allows the assignment of spin resonance spectra to individual NV center locations with nanometer-scale resolution and thus further improves spatial discrimination. For example, we resolved formerly indistinguishable emitters by their spectra. Furthermore, ODMR spectra contain metrology information allowing for sub-diffraction-limit sensing of, for instance, magnetic or electric fields with inherently parallel data acquisition. As an example, we have detected nuclear spins with nanometer-scale precision. Finally, we give prospects of how this technique can evolve into a fully parallel quantum sensor for nanometer resolution imaging of delocalized quantum correlations.
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