Nanoscale magnetometry with nitogen-vacancy color centers in diamond

POSTER

Abstract

The ability to sense and spatially resolve magnetic fields at nanometer dimensions is key to understanding many fundamental physical processes and has a wide range of applications in materials science, biology, and medicine. Our novel approach to nanoscale sensing is based on coherent control of individual electronic spins associated with the nitrogen-vacany (NV) center in diamond. In this work, we describe proof-of-principle experimental measurements of time-varying magnetic fields using single NV$^{-}$ centers in bulk crystalline diamond and sub-100 nm diamond nanocrystals. Using spin echo spectroscopy techniques on the spin triplet electronic ground state, we sense magnetic fields with frequencies from 3kHz to 15 kHz to a resolution approaching 100 $\mu$Gauss.

Authors

  • Jonathan Hodges

    • Department of Physics, Harvard University

  • Sungkun Hong

    • Department of Physics, Harvard University

  • Jeronimo Maze

    • Department of Physics, Harvard University

  • Paul Stanwix

    • Harvard-Smithsonian Center for Astrophysics

  • Paola Cappellaro

    • ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
    • ITAMP, Harvard University

  • Liang Jiang

    • Department of Physics, Harvard University

  • M.V. Gurudev Dutt

    • University of Pittsburgh
    • Department of Physics, University of Pittsburgh

  • Emre Togan

    • School of Engineering and Applied Science, Harvard University
    • Harvard University

  • Amir Yacoby

    • Department of Physics, Harvard University

  • Philip R. Hemmer

    • Department of Electrical and Computer Engineering, Texas A\&M University

  • Ronald L. Walsworth

    • Harvard-Smithsonian CfA
    • Harvard-Smithsonian Center for Astrophysics and Harvard University
    • Harvard-Smithsonian Center for Astrophysics

  • Mikhail Lukin

    • Harvard University
    • Department of Physics, Harvard University
    • Physics Department, Harvard University