Monte-Carlo-based spectral gain analysis for THz quantum cascade lasers
arXiv:1106.2958 · doi:10.1063/1.3147943
Abstract
Employing an ensemble Monte Carlo transport simulation, we self-consistently analyze the spectral gain for different THz quantum cascade laser structures, considering bound-to-continuum as well as resonant phonon depopulation designs. In this context, we investigate temperature dependent gain broadening, affecting the temperature performance of THz structures. Furthermore, we discuss the influence of the individual scattering mechanisms, such as electron-electron, impurity and interface roughness scattering. A comparison of the simulation results to experimental data yields good agreement.
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- Nanowire terahertz quantum cascade lasers
- Modeling bound-to-continuum terahertz quantum cascade lasers: The role of Coulomb interactions
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