Quantitative nanoscale MRI with a wide field of view

Magnetic spin resonance is a key non-invasive sensing and imaging technique across the life-, material- and fundamental sciences with further medical and commercial applications. Recent advances using paramagnetic color centers enable magnetic resonance down on the nanoscale, and sensitivity to sing...

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Bibliographic Details
Published in:arXiv.org 2018-07
Main Authors: Ziem, Florestan, Garsi, Marwa, Fedder, Helmut, Wrachtrup, Jörg
Format: Article
Language:English
Subjects:
Calcium fluoride
Color centers
Detection
Diamond films
Diamonds
Field of view
Magnetic resonance imaging
Medical imaging
NMR
Nuclear magnetic resonance
Sensitivity
Spatial resolution
Spin resonance
Thin films
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Summary:Magnetic spin resonance is a key non-invasive sensing and imaging technique across the life-, material- and fundamental sciences with further medical and commercial applications. Recent advances using paramagnetic color centers enable magnetic resonance down on the nanoscale, and sensitivity to single molecules is in sight. Ensemble sensing and wide field imaging improve sensitivity and acquisition speed, but may suffer from inhomogeneous spin control fields, produced by e.g. microstructures in integrated devices, and limited spatial resolution. Here we demonstrate multiplexed nuclear magnetic resonance imaging using diamond nitrogen-vacancy centers in such adverse conditions. We image thin films of calcium fluoride down to \(1.2\,\mathrm{nm}\) in thickness with a spatial resolution of \(250\,\mathrm{nm}\). This corresponds to a net moment of about 140 nuclear spins within the sensing radius of a given NV in the ensemble.
ISSN:2331-8422