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HL: Fachverband Halbleiterphysik
HL 53: Optical properties
HL 53.13: Vortrag
Freitag, 29. Februar 2008, 13:45–14:00, EW 201
Theory of surface plasmon polariton - exciton interaction — •Stephan Schwieger1, Parinda Vasa1,2, and Erich Runge1 — 1Technische Universität Ilmenau, Institut für Physik, 98693 Ilmenau — 2Institut für Physik, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg
A detailed understanding of the coupling of surface plasmon polaritons (SPPs) and excitons allows to control basic SPP properties, e.g., their life time and dispersion relation, by the design of special metal-semiconductor hybrid structures. We present a theory of SPP-exciton coupling. The SPP dispersion relation, the electromagnetic field distribution, and the far field reflectivity are calculated and discussed for an hybrid system that consists of an array of metal wires on top of a GaAs/AlGaAs quantum well. Clear indications for strong SPP-exciton interaction are found.