Laser Level Selection in Terahertz Quantum Cascade Lasers

2019 ◽  
Author(s):  
Aaron Maxwell Andrews ◽  
Gerald Bastard ◽  
Karl Unterrainer ◽  
Martin Alexander Kainz ◽  
Sebastian Schonhuber ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Laser Level ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals The Significance of Carrier Leakage for Stable Lasing in Split-Well Direct Phonon Terahertz Quantum Cascade Lasers

Photonics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 59 ◽  
Author(s):  
Nathalie Lander Gower ◽  
Silvia Piperno ◽  
Asaf Albo
Keyword(s):  
Excited States ◽  
Quantum Cascade Lasers ◽  
Laser Level ◽  
Hot Electrons ◽  
Quantum Cascade ◽  
Temperature Performance ◽  
Cascade Lasers

We studied the temperature performance of split-well direct phonon terahertz quantum cascade lasers and found that it is limited by a lasing instability that becomes significant as the temperature increases. When the hot electrons of the upper laser level cannot scatter effectively to excited states due to the high radiative barriers of the structures, a lasing instability occurs, which limits the temperature performance.

Improved performance from GaAs–AlGaAs quantum cascade lasers with enhanced upper laser level confinement

2000 ◽  
Vol 7 (1-2) ◽  
pp. 8-11 ◽  
Author(s):  
P.T. Keightley ◽  
L.R. Wilson ◽  
J.W. Cockburn ◽  
M.S. Skolnick ◽  
J.C. Clark ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Laser Level ◽  
Quantum Cascade ◽  
Improved Performance ◽  
Cascade Lasers

scholarly journals Electrons leakage from upper laser level to high energy levels in active regions of terahertz quantum cascade lasers

2019 ◽  
Vol 68 (2) ◽  
pp. 021101
Author(s):  
Jin-Feng Li ◽  
Ting Wan ◽  
Teng-Fei Wang ◽  
Wen-Hui Zhou ◽  
Jie Xin ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Energy Levels ◽  
Active Regions ◽  
High Energy ◽  
Laser Level ◽  
Quantum Cascade ◽  
Cascade Lasers

PbTe/PbS Multilayer Mirror for EuTe/PbTe Surface Emitting Quantum Cascade Lasers

2009 ◽  
Vol 129 (11) ◽  
pp. 799-801
Author(s):  
Daoshe Cao ◽  
Taiki Yamano ◽  
Yoku Inoue ◽  
Akihiro Ishida
Keyword(s):  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Multilayer Mirror ◽  
Cascade Lasers

Beam Pattern Investigation of Terahertz Quantum Cascade Lasers

PIERS Online ◽  
2008 ◽  
Vol 4 (2) ◽  
pp. 267-270 ◽  
Author(s):  
Saeed Fathololoumi ◽  
Dayan Ban ◽  
Hui Luo ◽  
Peter Grant ◽  
Sylvain R. Laframboise ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Beam Pattern ◽  
Quantum Cascade ◽  
Cascade Lasers

Electromagnetic-matter interactions and devices

2017 ◽  
Author(s):  
Sandip Tiwari
Keyword(s):  
Optical Tweezers ◽  
Quantum Cascade Lasers ◽  
Accelerator Physics ◽  
X Ray ◽  
Quantum Cascade ◽  
Inorganic Systems ◽  
Charge Cloud ◽  
Atomic Distance ◽  
Extinction Length ◽  
Cascade Lasers

This chapter explores electromagnetic-matter interactions from photon to extinction length scales, i.e., nanometer of X-ray and above. Starting with Casimir-Polder effect to understand interactions of metals and dielectrics at near-atomic distance scale, it stretches to larger wavelengths to explore optomechanics and its ability for energy exchange and signal transduction between PHz and GHz. This range is explored with near-quantum sensitivity limits. The chapter also develops the understanding phononic bandgaps, and for photons, it explores the use of energetic coupling for useful devices such as optical tweezers, confocal microscopes and atomic clocks. It also explores miniature accelerators as a frontier area in accelerator physics. Plasmonics—the electromagnetic interaction with electron charge cloud—is explored for propagating and confined conditions together with the approaches’ possible uses. Optoelectronic energy conversion is analyzed in organic and inorganic systems, with their underlying interaction physics through solar cells and its thermodynamic limit, and quantum cascade lasers.

Terahertz Quantum Cascade Lasers: Novel Resonators and Linewidth Properties

2007 ◽  
Author(s):  
Lukas Mahler ◽  
Richard P. Green ◽  
Ji-Hua Xu ◽  
Alessandro Tredicucci ◽  
Guido Giuliani ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers

λ∼3.36 μm room temperature InGaAs/AlAs(Sb) quantum cascade lasers with third order distributed feedback grating

2010 ◽  
Vol 97 (11) ◽  
pp. 111113 ◽  
Author(s):  
J. P. Commin ◽  
K. Kennedy ◽  
D. G. Revin ◽  
S. Y. Zhang ◽  
A. B. Krysa ◽  
...  
Keyword(s):  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Distributed Feedback ◽  
Third Order ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Physics and technology of Terahertz quantum cascade lasers

2021 ◽  
Vol 6 (1) ◽  
pp. 1893809
Author(s):  
Miriam S. Vitiello ◽  
Alessandro Tredicucci
Keyword(s):  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers

Fabrication-Tolerant Design for High-Power, Single-Lobe, Surface-Emitting Quantum Cascade Lasers

2021 ◽  
pp. 1-1
Author(s):  
Jae Ha Ryu ◽  
Chris Sigler ◽  
Jeremy D. Kirch ◽  
Thomas Earles ◽  
Dan Botez ◽  
...  
Keyword(s):  
High Power ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers
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