Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 20, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.206401
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Funding
- Defense Advanced Research Projects Agency [HR0011-09-1-0006]
- University of California
- Australian Research Council (ARC) [LP100100524, DP1096288, DP0880466]
- Australian Research Council [LP100100524] Funding Source: Australian Research Council
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We report electrical tuning by the Stark effect of the excited-state structure of single nitrogen-vacancy (NV) centers located less than or similar to 100 nm from the diamond surface. The zero-phonon line (ZPL) emission frequency is controllably varied over a range of 300 GHz. Using high-resolution emission spectroscopy, we observe electrical tuning of the strengths of both cycling and spin-altering transitions. Under resonant excitation, we apply dynamic feedback to stabilize the ZPL frequency. The transition is locked over several minutes and drifts of the peak position on timescales greater than or similar to 100 ms are reduced to a fraction of the single-scan linewidth, with standard deviation as low as 16 MHz (obtained for an NV in bulk, ultrapure diamond). These techniques should improve the entanglement success probability in quantum communications protocols.
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