A low complexity reconstruction approach for optical detection magnetic resonance based diamond NV color center magnetic field measurement

Diamond Nitrogen vacancy (NV) color center-based weak magnetic field detection is a popular topic for quantum sensing. The primary method of NV color center magnetic field measurement is the optical detection magnetic resonance (ODMR) method, including three main steps laser polarization, microwave excitation, and fluorescence signal collection. Then the intensities of the fluorescence signals are outputted as an ODMR curve where the magnetic field parameters can be directly observed. However, microwave excitation requires using a large number of frequencies by scanning the frequencies in a specific range, resulting in high complexity and low efficiency. Less than 50