Regensburg 2013 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 60: Focus Session: Coherent dynamics in semiconductor nanostructures and coupled devices

HL 60.6: Vortrag

Mittwoch, 13. März 2013, 17:45–18:00, H16

Quantum statistical simulation of quantum-dot laser dynamics — •Jurijs Grecenkovs, Christian Otto, Franz Schulze, Andreas Knorr, Eckehard Schöll, and Kathy Lüdge — Institute of Theoretical Physics, Technical University Berlin, Berlin, Germany

Quantum dot lasers are optical devices that exploit quantum properties of specific nanostructures. These nanostructures consist of layers of nanoscale small heterogeneous material inclusions (quantum dots) in a semiconductur and are formed through a self-organizing growth process on the surface of this semiconductur. This laser type exhibits highly nonlinear dynamical behaviour.
Previous efforts in quantum dot laser decription were based on semiclassical rate equations for light intensity and carrier densities inside an optical cavity and provided some insights about behavior of this laser. The focus of this work is to explore the unusual features of the laser that are connected exclusively to its quantum-mechanical properties. To achieve this goal a fully quantum-mechanical description of the laser is considered and a numerical analysis is performed.