Mainz 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 34: Quantum Technologies – Sensing I
Q 34.3: Talk
Wednesday, March 4, 2026, 15:15–15:30, P 5
Towards the detection of biomagnetic fields using widefield quantum sensing — •Mokessh Kannah Ciwan1, Baha Sakar1, Benno Scharpf1, Evgeniya Kirilina2, and Nabeel Aslam1 — 1Felix-Bloch-Institute for Solid State Physics, University of Lepzig, Leipzig, Germany — 2Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
In this study, we demonstrate the use of nitrogen-vacancy (NV) centers in diamond for widefield magnetometry with a large field of view (FOV, 0.8 x 0.8mm). This substantial FOV enables the simultaneous characterization of multiple NV centers. For sufficient illumination and spin-state manipulation, we utilize a laser with a power output of 2 Watts and a large homemade omega loop structure to deliver microwaves with high powers homogeneously across the entire FOV. Using a CCD camera to recollect the NV fluorescence, we aim to detect biomagnetic fields in the microtesla regime with a spatial resolution of ∼1.5 µm.
Keywords: NV centers; Widefield sensing; Biomagnetism