US Patent 10564231 RF windowing for magnetometry

A system for magnetic detection of an external magnetic field can include a RF excitation source generating a RF excitation pulse, and an optical excitation source to generate an optical excitation pulse to apply to the magneto-optical defect center element. The system can include a controller to cause a weighting window function to be applied to the RF excitation signal to generate a corresponding weighted windowed RF excitation signal that is applied to the magneto-optical defect center element. The system can include an optical detector receiving an optical signal based on light emitted by the magneto-optical defect center element responsive to the optical excitation pulse. The controller can receive a light detection pulse from the optical detector, and generate a magnetometry curve as a function of RF excitation frequency using the light detection signal. The controller can generate a representation of a magnetic field based on the magnetometry curve.