Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00206 : T1-limited Nitrogen-Vacancy magnetometry of fluctuating AC magnetic fields
Author:
Nitrogen-Vacancy (NV) centers in diamond are being actively
investigated as
a platform for nanoscale magnetic field sensing. In many of the
envisioned
applications the target AC magnetic field fluctuates over time
and cannot be
triggered in synchrony with the pulse protocol controlling NV
evolution.
Here we introduce a scheme to characterize the time correlation
of the
unknown field over a time interval limited by the NV spin-lattice
relaxation
time. Our approach uses two consecutive Hahn-echo sequences
separated by a
time interval of variable duration. We present an initial
experimental
demonstration of the technique using an engineered AC field and
discuss
possible extensions to the monitoring of slowly fluctuating spin
ensembles.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.206
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