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Design of THz Quantum Cascade Lasers by Simulations

Research output: Other conference contributionPaper, poster or abstractScientific


Original languageEnglish
Publication statusPublished - 25 Jul 2017
EventInternational Conference on Numerical Simulation of Optoelectronic Devices -
Duration: 1 Jan 1900 → …


ConferenceInternational Conference on Numerical Simulation of Optoelectronic Devices
Period1/01/00 → …


An approach is described for designing a terahertz quantum cascade laser based on AlGaAs-GaAs. Parameters such as doping concentration, which are independent of the frequency are optimally chosen. The remaining parameters are varied in order to obtain the right frequency at the best high temperature and oscillatory strength. Simulations are suitable for quantum cascade lasers structure, mainly, for calculation for its energy diagram, emission frequency, oscillatory strength and dipole moment of radiative transition. The emission of 3.5 THz is estimated based on a three-well resonant-phonon.