Electromagnetically induced transparency in ladder-type inhomogeneously broadened media: Theory and experiment

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.51.576· OSTI ID:7065199

Gea-Banacloche, J; Li, Y; Jin, S; Xiao, M ^[1]

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1. Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (United States)

We develop a theory of electromagnetically induced transparency in a three-level, ladder-type Doppler-broadened medium, paying special attention to the case where the coupling and probe beams are counterpropagating and have similar frequencies, so as to reduce the total Doppler width of the two-photon process. The theory is easily generalized to deal with the [Lambda] configuration, where the ideal arrangement involves two copropagating beams. We discuss different possible regimes, depending on the relative importance of the various broadening mechanisms, and identify ways to optimize the absorption-reduction effect. The theory is compared to the results of a recent experiment (on a ladder-type system), using the Rb [ital D]2 line, with generally very good agreement. The maximum absorption reduction observed (64.4%) appears to be mostly limited by the relatively large ([similar to]5 MHz) linewidth of the diode lasers used in our experiment.

• OSTI ID: 7065199
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

661300* -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METALS
DENSITY MATRIX
DOPPLER BROADENING
ELECTROMAGNETIC RADIATION
ELEMENTS
LASER RADIATION
LINE BROADENING
MATRICES
MATRIX ELEMENTS
METALS
OPTICAL PUMPING
POPULATION INVERSION
PUMPING
RADIATIONS
RUBIDIUM