Temperature performance analysis of terahertz quantum cascade lasers: Vertical versus diagonal designs
نویسندگان
چکیده
Vertical versus diagonal designs Alpár Mátyás, Mikhail A. Belkin, Paolo Lugli, and Christian Jirauschek Emmy Noether Research Group “Modeling of Quantum Cascade Devices,” Technische Universität München, D-80333 Munich, Germany Institute for Nanoelectronics, Technische Universität München, D-80333 Munich, Germany Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
منابع مشابه
Carrier leakage into the continuum in diagonal GaAs/Al0.15GaAs terahertz quantum cascade lasers
Articles you may be interested in λ ∼ 3.1 μ m room temperature InGaAs/AlAsSb/InP quantum cascade lasers Appl. Above room temperature operation of short wavelength (λ = 3.8 μ m) strain-compensated In 0.73 Ga 0.27 As – AlAs quantum-cascade lasers Appl. Lasing properties of GaAs/(Al,Ga)As quantum-cascade lasers as a function of injector doping density Appl.
متن کاملEffects of stimulated emission on transport in terahertz quantum cascade lasers based on diagonal designs
A hybrid Monte Carlo-density matrix transport simulator is used to analyze the transport properties of resonant-phonon type terahertz quantum cascade lasers. By comparing calculated and experimental results, the importance of stimulated emission to the interpretation of experimental data is highlighted, particularly for devices based on diagonal radiative transitions. Finally, we discuss the ab...
متن کاملExperimental investigation of terahertz quantum cascade laser with variable barrier heights
Articles you may be interested in An indirectly pumped terahertz quantum cascade laser with low injection coupling strength operating above 150K Improved terahertz quantum cascade laser with variable height barriers We report an experimental study of terahertz quantum cascade lasers with variable barrier heights based on the Al x Ga 1–x As/GaAs material system. Two new designs are developed bas...
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 کاملDesign of three-well indirect pumping terahertz quantum cascade lasers for high optical gain based on nonequilibrium Green's function analysis
Related Articles Enhancement of vertical emission in photonic crystal nanolasers Appl. Phys. Lett. 100, 121117 (2012) Tailoring chirp in spin-lasers Appl. Phys. Lett. 100, 121111 (2012) Blue monolithic II-VI-based vertical-cavity surface-emitting laser Appl. Phys. Lett. 100, 121102 (2012) High-performance uncooled distributed-feedback quantum cascade laser without lateral regrowth Appl. Phys. L...
متن کامل