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Physics Letters A

Efficient four-wave mixing of a coupled double quantum-well nanostructure

Xiangying Hao, Jiahua Li, Ji-Bing Liu, Peijun Song, Xiaoxue Yang

Published Feb 22, 2008• 38 citations
Publisher
DOI
10.1016/j.physleta.2007.12.012

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We perform a time-dependent analysis of continuous wave (cw) four-wave mixing (FWM) in InGaAs/AlAs coupled double quantum well (CDQW) structures via intersubband transitions. By using the coupled Schrödinger–Maxwell approach, we obtain the corresponding explicit analytical expressions for the input probe and FWM-generated signal fields. We calculated the dependencies of the efficiency of the FWM-generated fields on cw pump fields and the depths of penetration into the CDQW sample. Such a nonlinear optical process may be used to generate coherent short-wavelength radiation efficiently in the CDQW solid state system.