Monolithically Integrated Mid-Infrared Quantum Cascade Laser and Detector
Sensors, 2013 We demonstrate the monolithic integration of a mid-infrared laser and detector utilizing a bi-functional quantum cascade active region. When biased, this active region provides optical gain, while it can be used as a detector at zero bias. With our novel
Gottfried Strasser +6 more
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Mid-Infrared Quantum-Dot Quantum Cascade Laser: A Theoretical Feasibility Study
Photonics, 2016 In the framework of a microscopic model for intersubband gain from electrically pumped quantum-dot structures we investigate electrically pumped quantum-dots as active material for a mid-infrared quantum cascade laser.
Stephan Michael +2 more
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30 years of the quantum cascade laser [PDF]
Communications PhysicsIt 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
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Comparison of Physical and System Factors Impacting Hydration Sensing in Leaves Using Terahertz Time-Domain and Quantum Cascade Laser Feedback Interferometry Imaging [PDF]
Sensors, 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
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Quantum walk comb in a dual waveguide quantum cascade laser [PDF]
Nature CommunicationsRing 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
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Continuous-wave GaAs/AlGaAs quantum cascade laser at 5.7 THz [PDF]
NanophotonicsDesign 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
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Photonics, 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
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Quantum cascade laser: 30 years of discoveries [PDF]
NanophotonicsVitiello Miriam S. +3 more
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Coherent averaging quantum cascade laser based dual-comb spectrometer with near infrared light illumination control [PDF]
EPJ 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
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Broadband THz quantum cascade laser frequency combs with surface emission and inverse-designed facet reflectors [PDF]
EPJ Web of Conferences, 2023 We present a planarized waveguide cavity with an integrated broadband output coupler that improves both the output power and far-field properties of THz quantum cascade laser frequency combs. The laser mirror reflectivity can be tuned by the shape of the
Senica Urban +5 more
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