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

Abstract

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

8 pages, 6 figures, Submitted to Proc. of SPIE, Proceedings of XIVth International School on Quantum Electronics, Sunny Beach, Bulgaria 2006