Figure 9
From: A fibered laser system for the MIGA large scale atom interferometer
Counter-propagating Raman spectroscopy - after cooling and launching atoms in the F = 2 manifold, with an applied magnetic field. We scan the 3 MHz around the hyperfine splitting (6.834 GHz) symmetrically. We use a π-pulse with characteristic time 94 μs. We observe multiple features: the magnetic sublevels have their degeneracy lifted by 38.5 μT field, applied along the direction of the interrogation laser, the co-propagating transitions (labeled in gray) are visible due to slight polarization error on our injection mirror, and the Doppler-sensitive transitions (±keff (green and red, respectively). These data consist of 5000 points, with each point an average of 10 shots. The red shaded region is the minimum and maximum range of value.
