Unexpected Doppler-free resonance in generalized double dark states
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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.
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