Monte-Carlo-based spectral gain analysis for THz quantum cascade lasers

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.

References in corpus (4)

• Phase resolved measurements of stimulated emission
• Self-Consistent Theory of the Gain Linewidth for Quantum Cascade Lasers
• Temperature dependence of the gain profile for THz quantum cascade lasers
• Fingerprints of spatial charge transfer in Quantum Cascade Lasers

Cited by in corpus (4)

• Monte Carlo study of carrier-light coupling in terahertz quantum cascade lasers
• Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers
• Temperature performance analysis of terahertz quantum cascade lasers: Vertical versus diagonal designs
• Modeling bound-to-continuum terahertz quantum cascade lasers: The role of Coulomb interactions