TY - JOUR
T1 - Contributed review: camera-limits for wide-field magnetic resonance imaging with a nitrogen-vacancy spin sensor
AU - Wojciechowski, Adam M.
AU - Karadas, Mürsel
AU - Huck, Alexander
AU - Osterkamp, Christian
AU - Jankuhn, Steffen
AU - Meijer, Jan
AU - Jelezko, Fedor
AU - Andersen, Ulrik Lund
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
U2 - 10.1063/1.5010282
DO - 10.1063/1.5010282
M3 - Journal article
C2 - 29604724
VL - 89
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 3
M1 - 031501
ER -