Manipulating charge states in diamond via resonantly-driven near-field interactions with proximal germanium vacancies

ORAL

Abstract

We report on the local manipulation of the charge state of vacancies in diamond, where the resonant excitation of a proximal germanium-vacancy (GeV) center provides a local energy source to charge and discharge the vacancy. We observe that GeV frequently exhibits a splitting of the zero-phonon line (with splitting magnitude 100 MHz – 3 GHz) and spectral hopping between the two transitions. We demonstrate that the energetic splitting originates from a second-order Stark shift induced by local charges on vacancies. The charge-state switching then manifests as a hopping between distinct energies of the GeV zero-phonon line. We show that resonant excitation of the GeV can drive the charge state of the local vacancies. We investigate the dynamics of this process and present a theory for the interaction based on the local optical field of the GeV under resonant excitation.

*We would like to acknowledge the support from the University of Chicago Materials Research Science and Engineering Center, the Pritzker Nanofabrication Facility part of the Pritzker School of Molecular Engineering, the diamond CVD growth at Argonne National Lab, and the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Material Sciences, and Engineering Division.

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Presenters

  • Zixi Li

    • University of Chicago

Authors

  • Zixi Li

    • University of Chicago

  • Xinghan Guo

    • University of Chicago

  • Francesco Andreoli

    • ICFO

  • Yu Jin

    • University of Chicago

  • Anil Bilgin

    • University of Chicago

  • Giulia Galli

    • University of Chicago
    • University of Chicago, Argonne National Laboratory
    • Pritzker School of Molecular Engineering and Department of Chemistry, University of Chicago, IL, USA; Materials Science Division, Argonne National Laboratory, IL, USA
    • Argonne National Laboratory and University of Chicago

  • Darrick Chang

    • ICFO-The Institute of Photonic Sciences
    • ICFO

  • Alexander A High

    • University of Chicago