Line shape of four-wave-mixing signals: dependence on sample geometry and excitation conditions

We present an analysis of the dependence of the line shape of four-wave-mixing (FWM) signals on the sample geometry and the excitation conditions based on ZnSe single quantum wells with varying width and barrier composition. We analyze the geometry dependence of the biexciton binding energy and obse...

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Bibliographic Details
Published in:Journal of crystal growth 2000-06, Vol.214, p.856-861
Main Authors: Haase, B., Neukirch, U., Gutowski, J., Nürnberger, J., Faschinger, W., Behringer, M., Hommel, D., Axt, V.M., Bartels, G., Stahl, A.
Format: Article
Language:English
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Summary:We present an analysis of the dependence of the line shape of four-wave-mixing (FWM) signals on the sample geometry and the excitation conditions based on ZnSe single quantum wells with varying width and barrier composition. We analyze the geometry dependence of the biexciton binding energy and observe a strong influence of reabsorption and of the signal polarization on the spectral structures. The results exhibit excellent agreement with calculations based on a microscopic density-matrix theory considering the biexcitonic continuum for a 2D model.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(00)00210-4