[HTML][HTML] High-temperature terahertz quantum cascade lasers
B Wen, D Ban - Progress in Quantum Electronics, 2021 - Elsevier
The terahertz (THz) quantum cascade laser (QCL), first demonstrated in 2002, is among the
most promising radiation sources in the THz region owing to its high output power and broad …
most promising radiation sources in the THz region owing to its high output power and broad …
Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling
M Franckié, L Bosco, M Beck, C Bonzon… - Applied Physics …, 2018 - pubs.aip.org
We present a two-quantum well THz intersubband laser operating up to 192 K. The structure
has been optimized using non-equilibrium Green's function model. The result of this …
has been optimized using non-equilibrium Green's function model. The result of this …
Evaluation of material systems for THz quantum cascade laser active regions
Quantum cascade lasers (QCLs) have been realized in several different material systems. In
the mid‐infrared, active regions are predominantly based on In0. 53Ga0. 47As and InAs as …
the mid‐infrared, active regions are predominantly based on In0. 53Ga0. 47As and InAs as …
Bayesian optimization of terahertz quantum cascade lasers
M Franckié, J Faist - Physical Review Applied, 2020 - APS
We use Bayesian optimization algorithms in combination with a nonequilibrium Green's
function transport model to increase the maximum operating temperature of terahertz …
function transport model to increase the maximum operating temperature of terahertz …
[HTML][HTML] Tradeoffs between oscillator strength and lifetime in terahertz quantum cascade lasers
Contemporary research into diagonal active region terahertz quantum cascade lasers for
high temperature operation has yielded little success. We present evidence that the failure of …
high temperature operation has yielded little success. We present evidence that the failure of …
Impact of interface roughness distributions on the operation of quantum cascade lasers
We study the impact of interface roughness on the operation of mid-IR and THz quantum
cascade lasers. Particular emphasis is given towards the differences between the Gaussian …
cascade lasers. Particular emphasis is given towards the differences between the Gaussian …
Direct nanoscale imaging of evolving electric field domains in quantum structures
The external performance of quantum optoelectronic devices is governed by the spatial
profiles of electrons and potentials within the active regions of these devices. For example …
profiles of electrons and potentials within the active regions of these devices. For example …
High performance 4.7 THz GaAs quantum cascade lasers based on four quantum wells
K Ohtani, D Turčinková, C Bonzon… - New Journal of …, 2016 - iopscience.iop.org
GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at
4.7 THz are reported. A large current density dynamic range is observed, leading to a …
4.7 THz are reported. A large current density dynamic range is observed, leading to a …
An indirectly pumped terahertz quantum cascade laser with low injection coupling strength operating above 150 K
We designed and demonstrated a terahertz quantum cascade laser based on indirect pump
injection to the upper lasing state and phonon scattering extraction from the lower lasing …
injection to the upper lasing state and phonon scattering extraction from the lower lasing …
Temperature-driven enhancement of the stimulated emission rate in terahertz quantum cascade lasers
We analyze the temperature dependence of the light output power of terahertz quantum
cascade lasers (THz-QCLs) and demonstrate an enhancement of the stimulated emission …
cascade lasers (THz-QCLs) and demonstrate an enhancement of the stimulated emission …