Theoretical study, modeling and simulation of SL quantum cascade lasers

We present a thorough theoretical investigation of electron dynamics in superlattice quantum cascade lasers, both for the InGaAs/AlInAs and for the GaAs/AlGaAs systems. Determination of the miniband dispersion and electron wave functions and calculation of scattering rates have been performed in order to set up Monte Carlo simulations. Injection and extraction rates in the active region are calculated with a transfer matrix technique. Results are here discussed.