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Our setup consisted of a solid state diode laser with a wavelength of 670 nm, $670 nm$,  a solenoid with a coil constant of $11.1 \frac{mT}{A}$, a rotatable polarizer, and a photodiode. The current through the solenoid was controlled by a programmable bipolar operational power supply to produce either a DC current, AC current, or AC current with a DC offset. This allowed us to produce wither a constant magnetic field $B_{0}$ or a time varying magnetic field $B = B_{0} + B_{1} \cos(\omega t)$ as needed.