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30 years of the quantum cascade laser [PDF]

open access: yesCommunications Physics
It was January 1994, when the first quantum cascade laser (QCL) displayed laser action in Bell Laboratories. During these 30 years the QCL evolved incessantly, from a lab curiosity to the main on-chip source of coherent radiation in the Mid-IR and THz ...
Giacomo Scalari, Jérôme Faist
doaj   +2 more sources

Comparison of Physical and System Factors Impacting Hydration Sensing in Leaves Using Terahertz Time-Domain and Quantum Cascade Laser Feedback Interferometry Imaging [PDF]

open access: yesSensors, 2023
To reduce the water footprint in agriculture, the recent push toward precision irrigation management has initiated a sharp rise in photonics-based hydration sensing in plants in a non-contact, non-invasive manner.
Khushboo Singh   +11 more
doaj   +2 more sources

Quantum walk comb in a dual waveguide quantum cascade laser [PDF]

open access: yesNature Communications
Ring quantum cascade lasers (QCLs) have recently demonstrated very stable active comb formation in the form of a quantum walk comb which takes advantage of very short gain recovery mechanisms, inducing liquid properties to the light.
Alessio Cargioli   +5 more
doaj   +2 more sources

Continuous-wave GaAs/AlGaAs quantum cascade laser at 5.7 THz [PDF]

open access: yesNanophotonics
Design strategies for improving terahertz (THz) quantum cascade lasers (QCLs) in the 5–6 THz range are investigated numerically and experimentally, with the goal of overcoming the degradation in performance that occurs as the laser frequency approaches ...
Shahili Mohammad   +5 more
doaj   +2 more sources

Competition between Entrainment Phenomenon and Chaos in a Quantum-Cascade Laser under Strong Optical Reinjection

open access: yesPhotonics, 2022
The topic of external optical feedback in quantum-cascade lasers is relevant for stability and beam-properties considerations. Albeit less sensitive to external optical feedback than other lasers, quantum-cascade lasers can exhibit several behaviors ...
Olivier Spitz   +2 more
doaj   +1 more source

Quantum cascade laser: 30 years of discoveries [PDF]

open access: yesNanophotonics
Vitiello Miriam S.   +3 more
doaj   +2 more sources

MOVPE Technology of Fe-Compensated In PLayers for the Quantum Cascade Laser Applications [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2020
Quantum cascade laser is one of the most sophisticated semiconductor devices. Its technology requires extremely high precision and layers quality. Device performance is limited by thermal extraction form laser core.
Mikołaj Badura
doaj   +1 more source

Coherent averaging quantum cascade laser based dual-comb spectrometer with near infrared light illumination control [PDF]

open access: yesEPJ Web of Conferences, 2023
We present a dual-comb spectrometer based on quantum cascade lasers operating at 7.7 µm with a stabilization scheme that enables coherent averaging. We show that by illuminating a low cost near-infrared light source of the front facet of the quantum ...
Parriaux Alexandre   +6 more
doaj   +1 more source

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