Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond

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Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond

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Title: Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond
Author: Luan, Lan; Grinolds, Michael S.; Hong, Sungkun; Maletinsky, Patrick; Walsworth, Ronald L.; Yacoby, Amir

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Citation: Luan, Lan, Michael S. Grinolds, Sungkun Hong, Patrick Maletinsky, Ronald L. Walsworth, and Amir Yacoby. 2015. “Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond.” Scientific Reports 5 (1): 8119. doi:10.1038/srep08119. http://dx.doi.org/10.1038/srep08119.
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Abstract: The nitrogen-vacancy (NV) defect center in diamond has demonstrated great capability for nanoscale magnetic sensing and imaging for both static and periodically modulated target fields. However, it remains a challenge to detect and image randomly fluctuating magnetic fields. Recent theoretical and numerical works have outlined detection schemes that exploit changes in decoherence of the detector spin as a sensitive measure for fluctuating fields. Here we experimentally monitor the decoherence of a scanning NV center in order to image the fluctuating magnetic fields from paramagnetic impurities on an underlying diamond surface. We detect a signal corresponding to roughly 800 μB in 2 s of integration time, without any control on the target spins, and obtain magnetic-field spectral information using dynamical decoupling techniques. The extracted spatial and temporal properties of the surface paramagnetic impurities provide insight to prolonging the coherence of near-surface qubits for quantum information and metrology applications.
Published Version: doi:10.1038/srep08119
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4309953/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:14065397
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