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Parametric polariton amplification in semiconductor microcavities

Gaëtan Messin·Jean-Philippe Karr·Augustin Baas·Galina Khitrova·Romuald Houdré·Ross P. Stanley·Ursula Oesterle·Elisabeth Giacobino
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Abstract

We present novel experimental results demonstrating the coherence properties of the nonlinear emission from semiconductor microcavities in the strong coupling regime, recently interpreted by parametric polariton four-wave mixing. We use a geometry corresponding to degenerate four-wave mixing. In addition to the predicted threshold dependence of the emission on the pump power and spectral blue shift, we observe a phase dependence of the amplification which is a signature of a coherent polariton wave mixing process.

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Gaëtan Messin, Jean-Philippe Karr, Augustin Baas, Galina Khitrova, Romuald Houdré, Ross P. Stanley, Ursula Oesterle, Elisabeth Giacobino. 2007-01-18. Parametric polariton amplification in semiconductor microcavities. https://doi.org/10.1103/physrevlett.87.127403

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