We articulate confocal microscopy and electron spin resonance to implement spin-to-charge conversion in a small ensemble of nitrogen-vacancy (NV) centers in bulk diamond and demonstrate charge conversion of neighboring defects conditional on the NV spin state. We build on this observation to show time-resolved NV spin manipulation and ancilla-charge-aided NV spin state detection via integrated measurements. Our results hint at intriguing opportunities in the development of novel measurement strategies in fundamental science and quantum spintronics as well as in the search for enhanced forms of color-center-based metrology down to the limit of individual point defects.
Bibliographical noteFunding Information:
We thank J. Henshaw for fruitful discussions. The authors acknowledge support from the National Science Foundation (NSF) through Grants No. NSF-1619896, No. NSF-1726573, and No. NSF-1914945 and from Research Corporation for Science Advancement through a FRED award; they also acknowledge access to the facilities and research infrastructure of the NSF CREST IDEALS, Grant No. NSF-HRD-1547830.
© 2020 American Physical Society.
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