We developed a model to calculate the electrorefraction due to the Quantum Confined Stark Effect in strained cylindrical QDs. We followed a numerical matrix diagonalization method using an expansion in plane-wave states. The correct polarization dependence is obtained by using the 4X4 Luttinger-Kohn Hamiltonian for the valence band. The exciton wavefunction is also calculated using a diagonalization approach. We will present the absorption spectra as a function of applied electric field and dot dimensions and discuss the implications for the electrorefraction.
|Title of host publication
|Proceedings of the 7th Annual Symposium of the IEEE/LEOS Benelux Chapter, december 9, 2002, Amsterdam
|Taco D. Visser, Daan Lenstra, H.F. Schouten
|Published - 2002