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Title:

Influence of screening on longitudinal-optical phonon scattering in quantum cascade lasers

Document type:
Zeitschriftenaufsatz
Author(s):
Ezhov, I.; Jirauschek, C.
Abstract:
We theoretically investigate the influence of screening on electron-longitudinal optical phonon scattering in quantum cascade lasers. By employing ensemble Monte Carlo simulations, an advanced screening model based on the random-phase approximation is compared to the more elementary Thomas-Fermi and Debye models. For mid-infrared structures, and to a lesser extent also for terahertz designs, the inclusion of screening is shown to affect the simulated current and optical output power. Furthermore...     »
Keywords:
Quantum cascade lasers Computer modeling Electron scattering Doping Electron doped superconductors
Journal title:
J. Appl. Phys. 119, 033102 2016-01
Year:
2016
Year / month:
2016-01
Quarter:
1. Quartal
Month:
Jan
Language:
en
Fulltext / DOI:
doi:10.1063/1.4940192
WWW:
http://scitation.aip.org/content/aip/journal/jap/119/3/10.1063/1.4940192
Publisher:
AIP Publishing LLC
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