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Document type:
Zeitschriftenaufsatz 
Author(s):
Mátyás, A.; Kubis, T.; Lugli, P.; Jirauschek, 
Title:
Carrier transport in THz quantum cascade lasers: Are Green's functions necessary? 
Abstract:
We have applied two different simulation models for the stationary carrier transport and optical gain analysis in resonant phonon depopulation THz Quantum Cascade Lasers (QCLs), based on the semiclassical ensemble Monte Carlo (EMC) and fully quantum mechanical non-equilibrium Green's functions (NEGF) method, respectively. We find in the incoherent regime near and above the threshold current a qualitative and quantitative agreement of both methods. Therefore, we show that THz-QCLs can be successf...    »
 
Keywords:
Condensed matter: electrical, magnetic and optical Semiconductors Optics, quantum optics and lasers 
Journal title:
J. Phys.: Conf. Ser. 193 012026 
Year:
2009 
Language:
en 
Publisher:
IOP Publishing