## Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. # Self-consistent calculation of quantum well electron transfer structures for ultrafast optical switches

**Abstract**

A self-consistent finite difference method for the simulation of electron transfer structures is developed and applied to optimize InGaAsP/InP QW structures for fast optical switching devices. Simultaneous solution of Poisson's equation, continuity equation and Schrodinger's equation on a discretized mesh yields a fast and accurate simulation method which may be applied to arbitrary layer structures and which needs no artificial assumptions like space charge layers. With this method we calculate the important physical parameters of barrier, reservoir and quantum well electron transfer structures (BRAQWETS).