Problems:
 Inability to see all transitions
85Rb
5d5/2
F’’=5
Inaccurate measure of
5s atoms
Stokes
6p3/2
776 nm
5p3/2
F’=4
Monitor 420 nm
fluorescence from 6p-5s
transition
Pump
780 nm
Monitor 780 nm
fluorescence from MOT
5s1/2
F=3