Spatial transport of atomic coherence in electromagnetically induced absorption with a paraffin-coated Rb vapor cell

We report the spatial transport of spontaneously transferred atomic coherence (STAC) in electromagnetically induced absorption (EIA), which resulted from moving atoms with the STAC of the 5S(1/2) (F = 2)-5P(3/2) (F' = 3) transition of (87)Rb in a paraffin-coated vapor cell. In our experiment, t...

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Bibliographic Details
Published in:Optics express 2014-06, Vol.22 (13), p.15941-15948
Main Authors: Lee, Yoon-Seok, Moon, Han Seb
Format: Article
Language:English
Subjects:
Computer Simulation
Electromagnetic Fields
Electromagnetic Phenomena
Gases - analysis
Light
Paraffin - chemistry
Photons
Scattering, Radiation
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Summary:We report the spatial transport of spontaneously transferred atomic coherence (STAC) in electromagnetically induced absorption (EIA), which resulted from moving atoms with the STAC of the 5S(1/2) (F = 2)-5P(3/2) (F' = 3) transition of (87)Rb in a paraffin-coated vapor cell. In our experiment, two channels were spatially separate; the writing channel (WC) generated STAC in the EIA configuration, and the reading channel (RC) retrieved the optical field from the spatially transported STAC. Transported between the spatially separated positions, the fast light pulse of EIA in the WC and the delayed light pulse in the RC were observed. When the laser direction of the RC was counter-propagated in the direction of the WC, we observed direction reversal of the transported light pulse in the EIA medium. Furthermore, the delay time, the magnitude, and the width of the spatially transported light pulse were investigated with respect to the distance between the two channels.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.015941