Unexpected Doppler-free resonance in generalized double dark states Academic Article uri icon


  • Doppler-free resonance was observed in rubidium atomic vapor coherently driven by two strong coupling fields in an intrinsically non-Doppler free geometry. Different configurations of drive and probe fields of the inhomogeneously broadened rubidium vapor were studied. Up to 35% enhancement of the probe absorption due to quantum interference was observed. The changes in absorption spectra in the co- and counter-propogating geometries were explained by the four level atom model.

published proceedings

  • Physical Review A. Atomic, Molecular, and Optical Physics

author list (cited authors)

  • Ye, C. Y., Zibrov, A. S., Rostovtsev, Y. V., & Scully, M. O.

complete list of authors

  • Ye, CY||Zibrov, AS||Rostovtsev, YV||Scully, MO

publication date

  • January 2002