Coupling of exciton states in superlatti
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H. Mikkelsen; O. Hunderi; T. Dekorsy; S. Hunsche; H. Kurz
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Article
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1998
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Elsevier Science
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English
โ 135 KB
The dielectric function of GaAs/AlGaAs superlattices and bulk GaAs material are studied with density matrix models and modulation spectroscopy on optoelectronic modulator devices, showing the Coulomb enhanced Wannier-Stark effect and the Coulomb enhanced Franz-Keldysh effect, respectively. The model