[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 …

[HTML][HTML] Direct nanoscale imaging of evolving electric field domains in quantum structures

RS Dhar, SG Razavipour, E Dupont, C Xu… - Scientific reports, 2014 - nature.com
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 …

In Situ Hilbert-Transform Spectral Analysis of Pulsed Terahertz Radiation of Quantum Cascade Lasers by High-Tc Josephson Junctions

O Volkov, V Pavlovskiy, I Gundareva… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
We have studied the applicability of high-T c Josephson junctions (JJs) and Hilbert-
transform spectral analysis (HTSA) for characterization of pulsed terahertz (THz) radiation …

High-power density, single plasmon, terahertz quantum cascade lasers via transverse mode control

C Song, M Salih, LH Li, J Mangeney, J Tignon… - Applied Physics …, 2023 - pubs.aip.org
Terahertz (THz) quantum cascade lasers (QCLs) have been shown to emit peak powers
greater than 1W from a single facet in a single plasmon geometry. However, this is typically …

Nonlinear optical interactions of laser modes in quantum cascade lasers

AK Wójcik, N Yu, F Capasso… - Journal of Modern Optics, 2011 - Taylor & Francis
We overview the results of recent experimental and theoretical studies of nonlinear
dynamics of mid-infrared quantum cascade lasers (QCLs) associated with nonlinear …

Self-synchronization of laser modes and multistability in quantum cascade lasers

AK Wójcik, N Yu, L Diehl, F Capasso, A Belyanin - Physical review letters, 2011 - APS
We predict and confirm experimentally the regime of complete synchronization between
lateral modes in a quantum cascade laser, when frequency combs belonging to different …

Fabrication of 4.4 THz quantum cascade laser and its demonstration in high-resolution digital holographic imaging

T Jiang, C Shen, Z Zhan, R Zou, J Li, L Fan… - Journal of Alloys and …, 2019 - Elsevier
In this work, we present our research on the fabrication of high power terahertz quantum
cascade laser (THz QCL) with frequency at 4.4 THz and its demonstration in digital …

Design, analysis, and characterization of indirectly-pumped terahertz quantum cascade lasers

SG Razavipour - 2013 - uwspace.uwaterloo.ca
Quantum cascade laser (QCL), as a unipolar semiconductor laser based on intersubband
transitions in quantum wells, covers a large portion of the Mid and Far Infrared …

Enhanced TM-Mode 3D Coupled Wave Theory for Photonic Crystal Surface-Emitting Terahertz Quantum Cascade Lasers

M Chen, TT Lin, L Wang, H Hirayama… - arXiv preprint arXiv …, 2024 - arxiv.org
In this study, we propose and develop an enhanced three-dimensional coupled wave theory
(3D CWT) to investigate the optical field behavior in photonic crystal surface-emitting …

Application of High-Tc Josephson Detectors for Spectral Characterization of THz Quantum Cascade Lasers

O Volkov, V Pavlovskiy, Y Divin - IEEE Transactions on Applied …, 2022 - ieeexplore.ieee.org
We have demonstrated the potential of high-T c Josephson junctions (JJ) for broadband
spectral characterization of electromagnetic radiation from terahertz (THz) quantum cascade …