The optical spectra of a quantum cascade laser structure under nonequilibrium conditions is studied using the technique of nonequilibrium Green functions. We focus on the impact of Coulomb corrections and their dependence on the operating conditions. The role of the static mean field due to the charge distribution by electrons and ioninzed donors is investigated.
|Journal||Physica Status Solidi. C, Current Topics in Solid State Physics|
|Publication status||Published - 2005|
Subject classification (UKÄ)
- Condensed Matter Physics