All-optical atomic magnetometers based on nonlinear magneto-optical rotation with amplitude modulated light

摘要

We demonstrate a magnetometric technique based on nonlinear magneto-opticalrotation using amplitude modulated light. The magnetometers can be operated ineither open-loop (typical nonlinear magneto-optical rotation withamplitude-modulated light) or closed-loop (self-oscillating) modes. The lattermode is particularly well suited for conditions where the magnetic field ischanging by large amounts over a relatively short timescale.