4.5 Article

Analysis of High-Performing Terahertz Quantum Cascade Lasers

Related references

Note: Only part of the references are listed.
Article Physics, Multidisciplinary

Prospects of temperature performance enhancement through higher resonant phonon transition designs in GaAs-based terahertz quantum-cascade lasers

Aleksandar Demic et al.

Summary: This work discusses terahertz quantum cascade laser designs that utilize resonant phonon mechanism for assisting the lasing process. The study investigates whether higher energy separation would be more beneficial for high temperature performance compared to the commonly used resonant value. A density matrix model is employed for reliable cut-off temperature estimation, and design improvements are presented to enhance material gain and achieve 10-50 K higher cut-off temperature.

NEW JOURNAL OF PHYSICS (2022)

Article Physics, Applied

Barrier height study of two-well resonant-phonon terahertz quantum cascade lasers. I. The third-order tunneling current theory

Teppei Miyoshi et al.

Summary: The study presents a third-order tunneling current model to reflect the effect of carrier leakage, which is incorporated in a simulation of GaAs/AlGaAs quantum cascade lasers. It is found that carrier leakage significantly affects the performance of the lasers, and changes in barrier height impact carrier density and distribution.

JOURNAL OF APPLIED PHYSICS (2021)

Review Engineering, Electrical & Electronic

High-temperature terahertz quantum cascade lasers

Boyu Wen et al.

Summary: The terahertz quantum cascade laser (QCL) has shown high output power and broad frequency coverage, but is currently limited to applications below room temperature. Recent research focuses on increasing the maximum operating temperature to achieve room-temperature operation, intensifying competition and highlighting challenges and future trends in the field.

PROGRESS IN QUANTUM ELECTRONICS (2021)

Article Multidisciplinary Sciences

Leakages suppression by isolating the desired quantum levels for high-temperature terahertz quantum cascade lasers

Li Wang et al.

Summary: The key challenge for THz-QCLs is to operate at room temperature, where high lying quantum levels lead to significant leakages. By introducing the Ministep concept to isolate desired levels from high lying ones, leakages can be well suppressed to less than 5% for all designs.

SCIENTIFIC REPORTS (2021)

Article Optics

High-power portable terahertz laser systems

Ali Khalatpour et al.

Summary: Terahertz frequencies are underutilized due to the lack of powerful and compact sources, but the invention of THz quantum cascade lasers has helped bridge this gap and expand potential applications. However, the technology is still limited by demanding cooling requirements, restricting its practical use outside of laboratory settings.

NATURE PHOTONICS (2021)

Article Physics, Applied

Bayesian Optimization of Terahertz Quantum Cascade Lasers

Martin Franckie et al.

PHYSICAL REVIEW APPLIED (2020)

Article Nanoscience & Nanotechnology

Terahertz quantum cascade laser with non-resonant extraction

A. N. Baranov et al.

AIP ADVANCES (2019)

Article Physics, Applied

Thermoelectrically cooled THz quantum cascade laser operating up to 210K

L. Bosco et al.

APPLIED PHYSICS LETTERS (2019)

Article Physics, Applied

Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling

M. Franckie et al.

APPLIED PHYSICS LETTERS (2018)

Article Physics, Applied

Two-well terahertz quantum cascade lasers with suppressed carrier leakage

Asaf Albo et al.

APPLIED PHYSICS LETTERS (2017)

Article Physics, Applied

Simulating terahertz quantum cascade lasers: Trends from samples from different labs

David O. Winge et al.

JOURNAL OF APPLIED PHYSICS (2016)

Article Physics, Applied

Nonequilibrium phonon effects in midinfrared quantum cascade lasers

Y. B. Shi et al.

JOURNAL OF APPLIED PHYSICS (2014)

Article Engineering, Electrical & Electronic

Nonequilibrium Green's Function Model for Simulation of Quantum Cascade Laser Devices Under Operating Conditions

Andreas Wacker et al.

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS (2013)

Article Physics, Applied

Non-equilibrium longitudinal and transverse optical phonons in terahertz quantum cascade lasers

Miriam S. Vitiello et al.

APPLIED PHYSICS LETTERS (2012)

Article Physics, Applied

Extraction-controlled quantum cascade lasers

Andreas Wacker

APPLIED PHYSICS LETTERS (2010)

Article Physics, Applied

Two-well terahertz quantum-cascade laser with direct intrawell-phonon depopulation

Sushil Kumar et al.

APPLIED PHYSICS LETTERS (2009)

Article Physics, Applied

Temperature dependence of the gain profile for terahertz quantum cascade lasers

Rikard Nelander et al.

APPLIED PHYSICS LETTERS (2008)

Article Physics, Applied

Importance of coherence for electron transport in terahertz quantum cascade lasers

H Callebaut et al.

JOURNAL OF APPLIED PHYSICS (2005)

Article Multidisciplinary Sciences

Terahertz semiconductor-heterostructure laser

R Köhler et al.

NATURE (2002)

Review Physics, Multidisciplinary

Semiconductor superlattices: a model system for nonlinear transport

A Wacker

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2002)