Electroabsorption in extremely shallow quantum wells: Comparison between theory and experiment

It is shown, via detailed comparison between measured electroabsorption spectra and electroabsorption spectra calculated by a full excitonic Green’s function method, a decoupled excitonic Green’s function method and a variational method, that accurate description of the Coulombic coupling between di...

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Bibliographic Details
Published in:Journal of applied physics 1999-05, Vol.85 (10), p.7231-7238
Main Authors: Chen, X., Earnshaw, M. P., Goossen, K. W., Batty, W., Allsopp, D. W. E., Grey, R.
Format: Article
Language:English
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Summary:It is shown, via detailed comparison between measured electroabsorption spectra and electroabsorption spectra calculated by a full excitonic Green’s function method, a decoupled excitonic Green’s function method and a variational method, that accurate description of the Coulombic coupling between different subband pairs, including unbound quantum well states above the quantum well edge, is crucial for a correct prediction of electroabsorption in extremely shallow quantum well structures.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.370537