Many-body optical gain in ZnO- and GaN-based quantum well lasers

In this paper, we review on electronic and the optical properties of ZnO-based QW lasers by using multi-band effective-mass theory and the non-Markovian gain model with many-body effects. We compare the results with those of GaN-based QW structures. In addition, we consider the crystal orientation effect on characteristics of ZnO- and GaN-based QW lasers. The self-consistent (SC) band structures and wave functions for the QW structures are obtained by solving the Schrodinger equation for electrons and the 3times3 Hamiltonian for holes