Contributed Review - Camera-limits for wide-field magnetic resonance imaging with a nitrogen-vacancy spin sensor
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-03-01 |
| Journal | Review of Scientific Instruments |
| Authors | Adam M. Wojciechowski, MĆ¼rsel Karadas, Alexander Huck, Christian Osterkamp, Steffen Jankuhn |
| Institutions | Center for Integrated Quantum Science and Technology, Technical University of Denmark |
| Citations | 33 |
Abstract
Section titled āAbstractāSensitive, real-time optical magnetometry with nitrogen-vacancy centers in diamond relies on accurate imaging of small (āŖ10ā2), 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.