Comparative analysis of quantum cascade laser modeling based on density matrices and non-equilibrium Green's functions

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Bibtex

@article{02cd4bc9530a49edb8b738144ea1cf85,
title = "Comparative analysis of quantum cascade laser modeling based on density matrices and non-equilibrium Green's functions",
abstract = "We study the operation of an 8.5 mu m quantum cascade laser based on GaInAs/AlInAs lattice matched to InP using three different simulation models based on density matrix (DM) and non-equilibrium Green's function (NEGF) formulations. The latter advanced scheme serves as a validation for the simpler DM schemes and, at the same time, provides additional insight, such as the temperatures of the sub-band carrier distributions. We find that for the particular quantum cascade laser studied here, the behavior is well described by simple quantum mechanical estimates based on Fermi's golden rule. As a consequence, the DM model, which includes second order currents, agrees well with the NEGF results. Both these simulations are in accordance with previously reported data and a second regrown device. (C) 2014 AIP Publishing LLC.",
author = "Martin Franckie and Wolf, {J. M.} and V. Trinite and V. Liverini and J. Faist and G. Maisons and M. Carras and R. Aidam and R. Ostendorf and Andreas Wacker",
year = "2014",
doi = "10.1063/1.4895123",
language = "English",
volume = "105",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics (AIP)",
number = "10",

}