TITLE

Realization of a single and closed Λ-system in a room-temperature three-level coherently prepared resonant medium with narrow D1 hyperfine splittings

AUTHOR(S)
Li, K.; Deng, L.; Payne, M. G.
PUB. DATE
November 2009
SOURCE
Applied Physics Letters;11/30/2009, Vol. 95 Issue 22, p221103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A single, closed three-state Λ-system in room-temperature rubidium is investigated experimentally using a copropagating beam parallel-polarization configuration under weakly driven electromagnetically induced transparency (EIT) condition. Compare with the widely used orthogonal-polarization beam EIT configuration where multiple nonclosed Λ-schemes coexist, the parallel-polarizations configuration can completely eliminate the leakage light from the control field. Our state preparation and laser polarization lead to a single and closed Λ-scheme that eliminates the detrimental absorption due to nearby states in atomic species with hyperfine separations smaller than Doppler-broadened line widths, a case where the conventional EIT configuration fails completely.
ACCESSION #
45610557

 

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