Monte Carlo studies of the band-bending in GaAs/Al0.45Ga0.55As quantum-cascade laser

Jan Konupek, Piotr Borowik, Jean-Luc Thobel, Leszek Adamowicz


Results of Monte Carlo simulation of mid-infrared QCL structure initially proposed by Page et al. [Appl. Phys. Lett. 78, 3529 (2001)] are presented. The band-bending effect imposed by non-equilibrium electric charge distribution during the laser operation is observed. Perturbations of electric potential, non-equilibrium charge and electron sub-bands populations are demonstrated for a realistic range of electron sheet densities levels.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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ISSN: 2080-2242