Resonant Coupling Between NV Centers and Dark Spins at the Surface of Diamond

POSTER

Abstract

Recent studies of the surface of diamond have revealed the presence of as-yet-unidentified dark electronic spins on the diamond-air interface. These spins could serve as very sensitive probes of their local magnetic field environment. Of particular interest is the possibility of enhancing sensitivity in diamond-based nano-scale nuclear magnetic resonance (NMR) experiments due to the close proximity of nuclear spins to these dark surface spins. An efficient route towards initialization and spin-state detection of the dark spins is provided by controlled coupling with nitrogen-vacancy (NV) color centers, which can be spin polarized and readout optically. We describe the use of dressed-state schemes to achieve such resonant coupling, which may enable NMR spectroscopy and imaging of individual nuclear spins in samples on the diamond surface.

Authors

  • Linh Pham

    • Harvard-Smithsonian Center for Astrophysics

  • Chinmay Belthangady

    • Harvard-Smithsonian Center for Astrophysics

  • Stephen DeVience

    • Harvard University

  • Nir Bar-Gill

    • Hebrew University

  • Junghyun Lee

    • Massachusetts Institute of Technology

  • Paola Cappellaro

    • Massachusetts Institute of Technology

  • Mikhail Lukin

    • Harvard University

  • Amir Yacoby

    • Harvard University

  • Ronald Walsworth

    • Harvard University