Theoretical Study of Polarization Effects in Laterally Modulated Quantum Wells |
U. Bockelmann Walter Schottky Institut, Technische Universität München, Am Coulombwall, 8046 Garching, Germany |
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Polarization anisotropies of luminescence spectra caused by a potential modulation in the quantum well plane are discussed. Any lateral potential induces heavy hole light hole mixing. This leads to lateral polarization dependence of the interband transition rates if the confinement potential is not symmetrical with respect to rotations by 90 degrees around the quantum well growth axis. We present some numerical results for quantum wire arrays and discuss to what extent the present theory can be compared to experimental results. |
DOI: 10.12693/APhysPolA.84.505 PACS numbers: 78.66.-w |