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

Franckie, Martin LU ; Wolf, J. M. ; Trinite, V. ; Liverini, V. ; Faist, J. ; Maisons, G. ; Carras, M. ; Aidam, R. ; Ostendorf, R. and Wacker, Andreas LU orcid (2014) In Applied Physics Letters 105(10).
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... (More)
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. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
105
issue
10
article number
103106
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000342758700065
  • scopus:84907092759
ISSN
0003-6951
DOI
10.1063/1.4895123
project
Modeling Quantum Cascade Lasers: the Challenge of Infra-Red Devices
language
English
LU publication?
yes
id
02cd4bc9-530a-49ed-b8b7-38144ea1cf85 (old id 4803542)
date added to LUP
2016-04-01 10:00:52
date last changed
2021-09-29 02:02:56
@article{02cd4bc9-530a-49ed-b8b7-38144ea1cf85,
  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       = {Franckie, Martin and Wolf, J. M. and Trinite, V. and Liverini, V. and Faist, J. and Maisons, G. and Carras, M. and Aidam, R. and Ostendorf, R. and Wacker, Andreas},
  issn         = {0003-6951},
  language     = {eng},
  number       = {10},
  publisher    = {American Institute of Physics (AIP)},
  series       = {Applied Physics Letters},
  title        = {Comparative analysis of quantum cascade laser modeling based on density matrices and non-equilibrium Green's functions},
  url          = {https://lup.lub.lu.se/search/files/1480929/4905336.pdf},
  doi          = {10.1063/1.4895123},
  volume       = {105},
  year         = {2014},
}