Numerical simulations of n-type optoelectronic devices with single-band effective mass hamiltonian: Nonequilibrium Green´s function approach

One-band 1D effective mass model useful in the simulations of layered n-type devices is proposed. The model preserves nonparabolicity both in transport and in-plane directions and enables calculations of intersubband absorption. Simulations of quantum cascade laser are presented which use the model within nonequilibrium Green´s function method.