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Proceedings Paper

Phase control of electromagnetically induced transparency and its applications to tunable group velocity and atom localization
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Paper Abstract

We show that, by simple modifications of the usual three-level Λ-type scheme used for obtaining electromagnetically induced transparency (EIT), phase dependence in the response of the atomic medium to a weak probe field can be introduced. This gives rise to phase dependent susceptibility. By properly controlling phase and amplitudes of the drive fields we obtain variety of interesting effects. On one hand we obtain phase control of the group velocity of a probe field passing through medium to the extent that continuous tuning of the group velocity from subluminal to superluminal and back is possible. While on the other hand, by choosing one of the drive fields to be a standing wave field inside a cavity, we obtain sub-wavelength localization of moving atoms passing through the cavity field.

Paper Details

Date Published: 4 April 2005
PDF: 11 pages
Proc. SPIE 5735, Advanced Optical and Quantum Memories and Computing II, (4 April 2005); doi: 10.1117/12.601705
Show Author Affiliations
Kishore T. Kapale, Jet Propulsion Lab. (United States)
Mostafa Sahrai, Tabriz Univ. (Iran)
Habib Tajali, Tabriz Univ. (Iran)
M. Suhail Zubairy, Texas A&M Univ. (United States)

Published in SPIE Proceedings Vol. 5735:
Advanced Optical and Quantum Memories and Computing II
Hans J. Coufal; Zameer U. Hasan; Alan E. Craig, Editor(s)

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