Optical properties of GaInAs/GaAs(001) quantum well superlattices: Exciton and polariton dispersion curves
Physica Status Solidi C: Conferences, ISSN: 1610-1634, Vol: 1, Issue: 6, Page: 1403-1409
2004
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Conference Paper Description
Wannier exciton wavefunctions and energies have been computed in superlattices of strained GaInAs/GaAs(001) quantum wells (SLQWs) using Luttinger Hamiltonian and accurate variational envelope functions. Exciton dispersion curves of the SLQWs are then obtained by computing exciton energies for different K-points of the corresponding first Brillouin zone. Photon dispersion curves, due to the background dielectric constant modulation, and the polariton dispersion curves have been computed in the semiclassical self-consistent framework. The results are discussed for the case of exciton energies far from the photonic gaps. © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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