Design of high-performance quantum well electron transfer modulators via self-consistent modeling

We successfully use a self-consistent physical model to predict device performance in a chopped quantum well electron transfer modulator. Large built-in electric fields for this structure cause delocalization of the electron wave function, requiring a careful evaluation of excitonic effects. Our calculations of both the electrical and electro-optic properties are in remarkably good agreement with the experimental data once Coulomb interactions are properly taken into account.