Nonlinear magneto-optic polarization rotation with intense laser fields

Nonlinear magneto-optic polarization rotation with intense laser fields

We have studied the nonlinear Faraday effect with intense linear polarized light in an optically thick atomic rubidium vapor. We demonstrate that the polarization rotation rate rotation angle per unit magnetic field, in the limit of low field has a maximum value as the intensity and density are increased. We also show that the optimal sensitivity of an optical magnetometer based on this system ...

Chopped nonlinear magneto-optic rotation: A technique for precision measurements

We have developed a technique for precise measurement of small magnetic fields using nonlinear magneto-optic rotation (NMOR). The technique relies on the resonant laser beam being chopped. During the on time, the atoms are optically pumped into an aligned ground state (Δm= 2 coherence). During the off time, they freely precess around the magnetic field at the Larmor frequency. If the on-off mod...

Magneto-optic Laser Beam Steering

Applications of Nonlinear Magneto-Optic Effects with Ultra-Narrow Widths

A three-axis magnetometer based on the nonlinear magneto-optic effect is described. The magnetometer was used to measure the average (over the cell volume) residual magnetic field and to determine the shielding ratio of a multi-layer magnetic shield. The shot-noise-limited sensitivity of the magnetometer is estimated to be ≈10 Gs/Hz. A possible application to parity and time reversal invariance...

Nonlinear Magneto-Optic Effects with Ultra-Narrow Widths

Nonlinear Magneto-Optic Effects with Ultra-Narrow Widths Dmitry Budker , Valeriy Yashchuk , and Max Zolotorev a Department of Physics, University of California, Berkeley, California 94720-7300 b E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720 c B. P. Konstantinov Petersburg Nuclear Physics Institute, Gatchina, Russia 188350 Abstract Several dispersion-like features in th...