High-sensitivity spin-based electrometry with an ensemble of nitrogen-vacancy centers in diamond
Name
PhysRevA.95.053417.pdf
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999.68 KB
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Author(s)
Hemmer, Philip R.
Chen, Edward H
Clevenson, Hannah A
Johnson, Kerry A.
Pham, Linh M
Englund, Dirk R.
Braje, Danielle A.
Date Issued
May 2017
Journal
Physical Review A
Publisher
American Physical Society
Citation
Chen, Edward H. et al. “High-Sensitivity Spin-Based Electrometry with an Ensemble of Nitrogen-Vacancy Centers in Diamond.” Physical Review A 95.5 (2017): n. pag. © 2017 American Physical Society
Version
Final published version
Abstract
We demonstrate a spin-based, all-dielectric electrometer based on an ensemble of nitrogen-vacancy (NV[superscript −]) defects in diamond. An applied electric field causes energy-level shifts symmetrically away from the NV[superscript −]'s degenerate triplet states via the Stark effect; this symmetry provides immunity to temperature fluctuations allowing for shot-noise-limited detection. Using an ensemble of NV[superscript −]s, we demonstrate shot-noise-limited sensitivities approaching 1 (V/cm)/√Hz under ambient conditions, at low frequencies (<10 Hz), and over a large dynamic range (20 dB). A theoretical model for the ensemble of NV[superscript −]s fits well with measurements of the ground-state electric susceptibility parameter 〈k[subscript ⊥]〉. Implications of spin-based, dielectric sensors for micron-scale electric-field sensing are discussed.
MIT Department
Lincoln Laboratory
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.95.053417
