Wide-field quantitative magnetic imaging of superconducting vortices using perfectly aligned quantum sensors

Various techniques have been applied to visualize superconducting vortices, providing clues their electromagnetic response. Here, we present a wide-field, quantitative imaging of the stray field vortices in thin film using perfectly aligned diamond quantum sensors. Our analysis, which mitigates influence sensor inhomogeneities, visualizes magnetic flux single YBa2Cu3O7−δ with an accuracy ±10%. The obtained vortex shape is consistent theoretical model, and penetration depth its temperature dependence agree previous studies, proving our technique's broad applicability. This wide-field imaging, principle works even under extreme conditions, allows characterization various superconductors.