TY - JOUR
T1 - Carrier transport in THz quantum cascade lasers
T2 - Are Green's functions necessary?
AU - Mátyás, A.
AU - Kubis, T.
AU - Lugli, P.
AU - Jirauschek, C.
PY - 2009
Y1 - 2009
N2 - 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 successfully optimized utilizing the numerically efficient EMC method.
AB - 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 successfully optimized utilizing the numerically efficient EMC method.
UR - http://www.scopus.com/inward/record.url?scp=74549159060&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/193/1/012026
DO - 10.1088/1742-6596/193/1/012026
M3 - Article
AN - SCOPUS:74549159060
SN - 1742-6588
VL - 193
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
M1 - 012026
ER -