Detection of a single fundamental charge with nanoscale resolution in ambient conditions using the NV${}^{-}$ center in diamond

Abstract

Single charge detection with nanoscale spatial resolution in ambient conditions is a current frontier in metrology that has diverse interdisciplinary applications. Here, such single charge detection is demonstrated using two nitrogen-vacancy (NV) centers in diamond. One NV center is employed as a sensitive electrometer to detect the change in electric field created by the displacement of a single electron resulting from the optical switching of the other NV center between its neutral (NV${}^0$) and negative (NV${}^{-}$) charge states. As a consequence, our measurements also provide direct insight into the charge dynamics inside the material.

References in corpus (9)

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