Simultaneous imaging of magnetic field and temperature using a wide-field quantum diamond microscope.

Quantum sensing based on nitrogen-vacancy centers in diamond has shown excellent properties. Combined with the imaging technique, it shows exciting practicability. Here, we demonstrate the simultaneously imaging technique of magnetic field and temperature using a wide-field quantum diamond microscope. We describe the operating principles of the diamond microscope and report its sensitivity (magnetic field ∼ 1.8 μ T/Hz 1 / 2 and temperature ∼ 0.4 K/Hz 1 / 2 ), spatial resolution (1.3 μm), and field of view (400 × 300 μ m 2 ). Finally, we use the microscope to obtain images of an integrated cell heater and a PCB, demonstrating its ability in the application of magnetic field and temperature simultaneously imaging at wide-field. [ABSTRACT FROM AUTHOR]