Observation of magneto-optical rotation effects in cold $^{87}$Rb atoms in an integrating sphere

TL;DR

This paper demonstrates a modified detection scheme for magneto-optical rotation in cold rubidium atoms within an integrating sphere, highlighting key parameters affecting the effect and potential applications in high-contrast atomic clocks and magnetometers.

Contribution

It introduces a novel detection method for MOR in cold atoms using an integrating sphere, enhancing signal contrast for precision measurements.

Findings

Magnetic field, light intensity, and temperature significantly influence MOR.

The scheme improves rotation signal contrast.

Potential applications in high-precision cold atom devices.

Abstract

We present a modified scheme for detection of the magneto-optical rotation (MOR) effect, where a linearly polarized laser field is interacting with cold $^{87}$Rb atoms in an integrating sphere. The rotation angle of the probe beam's polarization plane is detected in the experiment. The results indicate that the biased magnetic field, the probe light intensity and detuning, and the cold atoms' temperature are key parameters for the MOR effect. This scheme may improve the contrast of the rotation signal and provide an useful approach for high contrast cold atom clocks and magnetometers.