Dresden 2006 – wissenschaftliches Programm

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HL: Halbleiterphysik

HL 9: Poster I

HL 9.95: Poster

Montag, 27. März 2006, 15:15–17:45, P3

Theory of relaxation oscillations in semiconductor quantum dot lasers — •Ermin Malic, Moritz Jan Philip Bormann, Eckehard Schöll, and Andreas Knorr — Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Hardenberg Str. 36, 10623 Berlin, Germany

The dynamics of relaxation oscillations in semiconductor quantum dot lasers is investigated theoretically. Our microscopic approach combines rate equations for photon and electron occupations with kinetic equations for the scattering rates between Coulomb coupled localized states and continuum wetting layer states in an InAs/GaAs quantum dot structure. The relaxation oscillations emerging during turn-on processes are on a nanosecond time scale.