Induced Absorption Resonance on the Open Fg = 1 -> Fe = 2 Transition of   the D1 Line of the 87Rb Atom
  Induced absorption resonance on the open Fg=1 -> Fe = 2 transition of the D1 line of the 87Rb atom has been observed. The effect of atomic motion on the formation of the resonance has been revealed. The numerical calculations are in good agreement with experiment. 
A. S. Zibrov, A. B. Matsko