  We experimentally demonstrate precision addressing of single quantum emitters
by combined optical microscopy and spin resonance techniques. To this end we
utilize 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.
