Journal article · Preprint article
Contributed review: camera-limits for wide-field magnetic resonance imaging with a nitrogen-vacancy spin sensor
Department of Physics, Technical University of Denmark1
Department of Electrical Engineering, Technical University of Denmark2
Center for Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark3
Quantum Physics and Information Technology, Department of Physics, Technical University of Denmark4
Ulm University5
Leipzig University6
Sensitive, real-time optical magnetometry with nitrogen-vacancy centers in diamond relies on accurate imaging of small (≪10−2), fractional fluorescence changes across the diamond sample. We discuss the limitations on magnetic field sensitivity resulting from the limited number of photoelectrons that a camera can record in a given time.
Several types of camera sensors are analyzed, and the smallest measurable magnetic field change is estimated for each type. We show that most common sensors are of a limited use in such applications, while certain highly specific cameras allow achieving nanotesla-level sensitivity in 1 s of a combined exposure.
Finally, we demonstrate the results obtained with a lock-in camera that paves the way for real-time, wide-field magnetometry at the nanotesla level and with a micrometer resolution.
Language: | English |
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Publisher: | AIP Publishing LLC |
Year: | 2018 |
Pages: | 031501 |
ISSN: | 10897623 and 00346748 |
Types: | Journal article and Preprint article |
DOI: | 10.1063/1.5010282 |
ORCIDs: | Wojciechowski, Adam M. , Karadas, Mürsel , Huck, Alexander and Andersen, Ulrik Lund |