Numéro
Le Journal de Physique IV
Volume 03, Numéro C5, Octobre 1993
Third International Conference on Optics of Excitons in Confined
Page(s) C5-373 - C5-376
DOI http://dx.doi.org/10.1051/jp4:1993578
Third International Conference on Optics of Excitons in Confined

Le Journal de Physique IV 03 (1993) C5-373-C5-376

DOI: 10.1051/jp4:1993578

Excitons in quantum disks and disk arrays

S. GLUTSCH, B. ADOLPH and F. BECHSTEDT

Friedrich-Schiller-Universität, Institut für Festkörpertheorie und Theoretische Optik, Max-Wien-Platz 1, 07743 Jena, Germany


Abstract
We present a theory which describes the influcence of the Coulomb attraction on the optical spectra for quantum dots within the envelope function formalism. Starting from a generalized non-local Elliott formula absorption and luminescence spectra are traced back to two-particle wave functions and energies. They are solutions of the corresponding Schrödinger equation for interacting electron-hole pairs in confinement potentials determined by the spatial variation of the band edges of the considered microstructure. A complete numerical analysis of the two-particle problem for flat quantum dots, i. e. disks for which the size quantization in z-direction is much stronger than that in the xy-plane is presented.



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