Analysis of the influence of external magnetic field on transition matrix elements in quantum well and quantum cascade laser structures

摘要

We present a method for modeling nonparabolicity effects (NPE) in quantum nano-structures in presence of external electric and magnetic field by using second order perturbation theory. The method is applied to analysis of quantum well structure and active region of a quantum cascade laser (QCL). This model will allow us to examine the influence of magnetic field on dipole matrix element in QCL structures, which will provide a better insight to how NPE can affect the gain of QCL structures.