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Highly efficient four-wave mixing in a coherent six-level system in ultraslow propagation regime

Journal Article · · Physical Review. A
;  [1]
  1. Department of Physics and Institute of Theoretical Physics, East China Normal University, Shanghai 200062 (China)
We propose a scheme to obtain a highly efficient four-wave mixing (FWM) in a coherent six-level tripod system by using a double-dark resonance and multiphoton destructive interference induced transparency. We show both analytically and numerically that the optical-wave mixing in such a system with a pump wave and an internally generated FWM wave mediated by electromagnetically induced transparency and hence propagating with matched ultraslow group velocities can result in a significant enhancement of FWM conversion efficiency. This interesting scheme may be used to generate coherent short-wavelength radiation in dense optical media with very low pump-wave intensity.
OSTI ID:
21020804
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English