Large index of refraction without absorption via decay-induced coherence in a three-level V system

  • W.-H. Xu
  • J.-H. Wu
  • J.-Y. GaoEmail author


We study the effects of quantum interference from spontaneous emission on the dispersion-absorption properties in a three-level V-type atomic system with two near-degenerate excited levels. We found that due to the quantum interference between two spontaneous decay channels, large index of refraction without absorption always can be obtained just by choosing proper values of the relative phase between the two applied fields.


Coherence Refraction Applied Field Relative Phase Spontaneous Emission 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.College of PhysicsJilin UniversityChangchunP.R. China
  2. 2.Key Laboratory of Coherent Light, Atomic and Molecular SpectroscopyEducational Ministry of ChinaP.R. China
  3. 3.CCAST (World Laboratory)BeijingP.R. China

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