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The European Physical Journal D

, Volume 54, Issue 1, pp 119–130 | Cite as

Effect of spontaneously generated coherence on EIT and its refractive properties in four- and five-levels systems

  • K. I. Osman
  • S. S. Hassan
  • A. JoshiEmail author
Quantum Optics and Quantum Information

Abstract

The effects of spontaneously generated coherence (SGC) and phases of optical fields on the phenomenon of electromagnetically induced transparency (EIT) are investigated in a four-level inverted-Y system and in a five-level K-type system under various parametric conditions in order to demonstrate controllability of the EIT, dispersion properties, and group velocity in such systems. Non-zero second-order susceptibility in both systems is due to the SGC effect. The experimental viability of the model in semiconductor quantum well systems is also discussed.

PACS

42.50.Gy Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption 42.50.Nn Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of MathematicsAl-Azhar University, Faculty of Science (Women’s Section)Nasr City, CairoEgypt
  2. 2.Department of Mathematics, College of ScienceUniversity of BahrainManamaKingdom of Bahrain
  3. 3.Department of PhysicsEastern Illinois UniversityCharlestonUSA

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