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Proceedings Paper

Sensing nano-NMR diffusion spectra using a nitrogen vacancy center
Author(s): Daniel Cohen; Maxim Khodas; Oded Keneth; Alex Retzker
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Paper Abstract

Nano-NMR is an emerging field, striving to bring classic NMR techniques to a single molecule resolution. In recent years nitrogen vacancy centers, have been shown to be a promising experimental platform for that purpose. The main idea behind these experiments in liquids, is that the molecules create a time varying magnetic field at the NV's location, which causes the NV to dephase. The dephasing rate is related to the power spectrum of the magnetic noise, and thus encodes the NMR spectra. Understanding the diffusion spectrum is therefore key to future advancements in the field. In this work we calculate analytically the auto-correlation of the magnetic field at the NV's location. We then provide an asymptotic behavior of the power spectrum. These two results can be used to estimate the liquid's self-diffusion coefficient and the NV's distance from the diamond surface.

Paper Details

Date Published: 1 March 2019
PDF: 22 pages
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109340Q (1 March 2019); doi: 10.1117/12.2516596
Show Author Affiliations
Daniel Cohen, The Hebrew Univ. of Jerusalem (Israel)
Maxim Khodas, The Hebrew Univ. of Jerusalem (Israel)
Oded Keneth, Technion-Israel Institute of Technology (Israel)
Alex Retzker, The Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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