Density matrix Monte Carlo modeling of quantum cascade lasers
نویسندگان
چکیده
منابع مشابه
Monte Carlo Simulation of Electron Transport in Quantum Cascade Lasers
We describe a numerical simulator for the electron transport in quantum cascade lasers (QCLs). A semi-classical transport model based on the Pauli master equation (PME) is used as it is considered a good trade-off between physical accuracy and computational efficiency [1]. The basis states for the PME are determined using a multi-band k·p Hamiltonian in order to account for the effects of band ...
متن کاملInteraction picture density matrix quantum Monte Carlo.
The recently developed density matrix quantum Monte Carlo (DMQMC) algorithm stochastically samples the N-body thermal density matrix and hence provides access to exact properties of many-particle quantum systems at arbitrary temperatures. We demonstrate that moving to the interaction picture provides substantial benefits when applying DMQMC to interacting fermions. In this first study, we focus...
متن کاملTemperature Effect on THz Quantum Cascade Lasers
A simple semi-phenomenological model, which accurately predicts the dependence of thresholdcurrent for temperature of Resonant-phonon three well quantum cascade laser based on verticaltransitions is offered. We found that, the longitude optical phonon scattering of thermally excitedelectrons is the most important limiting factor for thermal performance of high frequency THz QCLs.In low frequenc...
متن کاملX-valley leakage in GaAs-based midinfrared quantum cascade lasers: A Monte Carlo study
We present a detailed Monte Carlo simulation of electron transport incorporating both and X-valley states in GaAs-based quantum cascade lasers QCLs . states are calculated using the K ·p method, while X states are obtained within the effective mass framework. All the relevant electron-phonon, electron-electron, and intervalley scattering mechanisms are included. We investigate the X-valley leak...
متن کاملCoupled carrier–phonon nonequilibrium dynamics in terahertz quantum cascade lasers: a Monte Carlo analysis
The operation of state-of-the-art optoelectronic quantum devices may be significantly affected by the presence of a nonequilibrium quasiparticle population to which the carrier subsystem is unavoidably coupled. This situation is particularly evident in new-generation semiconductor-heterostructure-based quantum emitters, operating both in the mid-infrared as well as in the terahertz (THz) region...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2017
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.5005618