Calculation of the dielectric function for highly excited polar semiconductors |
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| Authors: | S Schmitt-Rink D B Tran Thoai H Haug |
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| Institution: | (1) Institut für Theoretische Physik der Universität Frankfurt-Main, Robert-Mayer-Straße 8-10, D-6000 Frankfurt-Main, Germany |
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| Abstract: | The optical dielectric function of an electron-hole plasma in highly excited polar semiconductors with a direct band gap is calculated by solving a Bethe-Salpeter equation for the polarization function. The screening of the Coulomb potential is treated in a damped phonon-plasmon-pole approximation. We include the complex dynamical self-energy corrections as well as electron-hole correlations.Project of the Sonderforschungsbereich Frankfurt/Darmstadt, financed by special funds of the Deutsche Forschungsgemeinschaft |
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