Theoretical Description Of The Electronic Coupling Between A Wetting Layer And A QD Superlattice Plane

摘要

New results on the simulation of 2D Quantum Dots (QD) InAs/InP superlattices, emitting at 1.55 μm, telecommunication wavelength, are presented here. Using the Fourier-transformed Schr?dinger equation, we describe the electronic coupling between a wetting layer (WL) and the QD superlattice. It is shown that the increase of quantum dot density, induces a fragmentation of WL density of states, and the apparition of localized states. The results shows that WL and QD have to be considered as a unique system, in strong coupling conditions.