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Phys. Rev. A 70, 053811 (2004) [8 pages]

Influence of coherent Raman scattering on coherent population trapping in atomic sodium vapor

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Vincent Wong*, Ryan S. Bennink, Alberto M. Marino, Robert W. Boyd, and C. R. Stroud, Jr.
The Institute of Optics, University of Rochester, Rochester, New York 14627, USA

F. A. Narducci
EO Sensors Division, Naval Air Systems Command, Patuxent River, Maryland 20670, USA

Received 7 May 2004; published 11 November 2004

We study how coherent Stokes and anti-Stokes Raman scattering influence coherent population trapping. In an experiment using an atomic sodium vapor cell we observe induced transparency, induced absorption, and gain features, all of subnatural linewidth. The electromagnetically induced resonance is a peak or a dip depending on which side of the optical transition the fields are tuned to, and thus whether coherent anti-Stokes Raman scattering or coherent Stokes Raman scattering is the dominant process.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.053811
DOI:
10.1103/PhysRevA.70.053811
PACS:
42.50.Gy, 42.65.Dr, 32.80.Qk, 33.40.+f

*Electronic address: vin@optics.rochester.edu