Two photon spectroscopy for Rb vapor cells in various regimes

Several experiments will be presented and discussed:

1. Control of vortex array rotation and motion in electromagnetically induced transparency. We demonstrate how the classical optics effect of near-field vortex rotation is modified by the tunable media susceptibility.

2. Phase modulation spectroscopy in EIT media - we measure the electromagnetically induced transparency transmission for a probe with a strongly phase-modulated pump, demonstrating a transition from adiabatic to non-adiabatic response, along with magnetic field dependence.

3. Prospects for single/single photon memory experiments in this system 4. Diffraction from an AC stark-shifted grating of the Rb atoms in the cell.

5. Briefly: Birefringent magnetometry measurements in the SERF regime (high density, high collision rate regime).