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Titel:

Modeling bound-to-continuum terahertz quantum cascade lasers: The role of Coulomb interactions

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Jirauschek, C.; Mátyás, A.; Lugli, P.
Abstract:
Based on an ensemble Monte Carlo analysis, we show that Coulomb interactions play a dominant role in bound-to-continuum terahertz quantum cascade lasers and thus require careful modeling. Coulomb interactions enter our simulation in the form of space charge effects as well as Coulomb scattering events. By comparison to a full many-subband Coulomb screening model, we show that simplified approaches produce considerable deviations for such structures. Also the spin dependence of electron-electron...     »
Stichworte:
Space charge effects Quantum cascade lasers Electron scattering Conduction bands Carrier scattering
Zeitschriftentitel:
J. Appl. Phys. 107, 013104 2010-01
Jahr:
2010
Jahr / Monat:
2010-01
Quartal:
1. Quartal
Monat:
Jan
Volltext / DOI:
doi:10.1063/1.3276160
WWW:
http://scitation.aip.org/content/aip/journal/jap/107/1/10.1063/1.3276160
Verlag / Institution:
AIP Publishing LLC.
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