Ensemble nuclear polarization in diamond in a broad range of magnetic fields

ORAL

Abstract

Nuclear polarization via optical pumping of the nitrogen-vacancy (NV) centers in diamond has drawn recent attention due to its importance for understanding the fundamental processes involving the centers in applications such as optical hyperpolarization of nuclei. We have studied polarization of the 14N nuclei constituent to NV centers in a broad range of magnetic fields, from zero to above the magnetic field of ≈ 0.1 T corresponding to the ground-state level anticrossing (GSLAC). We observe sharp drops in the polarization superimposed on top of a broader regular dependence including resonance peaks at 51.2 mT and 102.4 mT, reported in [1] and [2]. The widths of the sharp features are approximately 0.33 mT full width at half maximum at 59 mT and 0.78 mT close to GSLAC. A theoretical explanation describing all these features will be provided.

[1] V. Jacques, P. Neumann, et al., Phys. Rev. Lett. 102, 057403 (2009).
[2] V. Ivády, K. Szász, et al., Physical Review B 92, 115206 (2015).

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Presenters

  • Dmitry Budker

    Department of Atomic Physics, University of California, University of California

Authors

  • Huijie Zheng

    Johannes Gutenberg Universität Mainz

  • Viktor Ivády

    Wigner Research Centre for Physics, Hungarian Academy of Science

  • Arne Wickenbrock

    Johannes Gutenberg Universität Mainz

  • Lykourgos Bougas

    Johannes Gutenberg Universität Mainz

  • Igor Abrikosov

    The Department of Physics, Chemistry and Biology (IFM), Linköping University, Linkoping Univensity, Materials Modeling and Development Laboratory, National University of Science and Technology “MISIS”

  • Adam Gali

    Wigner Research Centre for Physcis, Hungarian Academy of Sciences, Wigner Research Centre for Physics, Hungarian Academy of Science

  • Dmitry Budker

    Department of Atomic Physics, University of California, University of California