Optimized sensitivity of an ensemble NV-diamond magnetometer

ORAL

Abstract

Improvement in sensitivity and development of imaging will allow NV-diamond ensemble magnetometry to be competitive and surpass current tools. NV magnetometers allow for novel measurements due to the close proximity one can bring the sensor to the source along with the high spatial (\textasciitilde 10 nm) and temporal (\textasciitilde 1 us) possible. Here we present efforts to improve the sensitivity of our bulk NV-diamond magnetometer to \textless 1 pT/. This will be accomplished through application of advanced pulse sequences, engineering enhancements to improve sensitivity, and development in diamond fabrication techniques to improve the intrinsic qualities of the sensor.

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Authors

  • Jennifer Schloss

    MIT

  • John Barry

    Harvard University, Harvard-Smithsonian Center for Astrophysics, Department of Physics, Harvard Unviersity

  • Matthew Turner

    Harvard University, Department of Physics, Harvard University

  • Ronald Walsworth

    Harvard CfA, Harvard-Smithsonian Center for Astrophysics, Harvard-Smithsonian Center for Astrophysics and Harvard University, Harvard University, Harvard-Smithsonian Center for Astrophysics, Department of Physics, Harvard Unviersity