Figure 1
From: Simultaneous imaging of magnetic field and temperature using a wide-field quantum diamond microscope
(a) The wide-field quantum diamond microscope used for magnetic fields and temperature imaging. (b) Atomic structure and energy-level diagram of the NV defect. (c) Schematic diagram of the ODMR scan imaging method. The camera captures N frames pictures synchronizing with microwave steps. Magnetic fields and temperatures were carried out by using the frequency shift of NVa, b, b, and d