Polarization Studies of Four-Wave Mixing in GaAs Quantum Wells

  • G. J. Denton
  • R. T. Phillips
Part of the NATO ASI Series book series (NSSB, volume 330)


Recently, polarization-dependent four-wave mixing experiments have demonstrated the need to account for the angular-momentum states of excitons when modelling their nonlinear optical response in GaAs quantum wells1. If exciton-exciton interactions are neglected, the appropriate model of the heavy-hole (hh) exciton is a pair of independent two-level systems which interact with left and right circularly polarized photons respectively. Abella et al.2 invoked this model to explain the results of their photon-echo experiments on ruby in the 1960s. If the light-hole (lh) and heavy-hole exciton transitions are excited simultaneously, the six-level model illustrated in Figure 1 is required.


Pump Beam Incident Photon Energy Multiple Quantum Well Nonlinear Optical Response Injection Level 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • G. J. Denton
    • 1
  • R. T. Phillips
    • 1
  1. 1.Cavendish LaboratoryCambridgeUK

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