Results 11 to 20 of about 28,891 (190)
Modeling techniques for quantum cascade lasers
Applied Physics Reviews, 2014 Quantum cascade lasers are unipolar semiconductor lasers covering a wide range of the infrared and terahertz spectrum. Lasing action is achieved by using optical intersubband transitions between quantized states in specifically designed multiple-quantum ...
Jirauschek, Christian, Kubis, Tillmann
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APL Photonics, 2023 Terahertz quantum cascade laser sources based on intra-cavity Cherenkov difference-frequency generation in dual-wavelength mid-infrared quantum cascade lasers are currently the only monolithic semiconductor laser technology that can deliver continuous ...
Wolfhard Oberhausen +7 more
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Quantum dot cascade laser [PDF]
Nanoscale Research Letters, 2014 Abstract We demonstrated an unambiguous quantum dot cascade laser based on InGaAs/GaAs/InAs/InAlAs heterostructure by making use of self-assembled quantum dots in the Stranski-Krastanow growth mode and two-step strain compensation active region design.
Zhuo, N +6 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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All-optical adaptive control of quantum cascade random lasers
Nature Communications, 2020 Tunable quantum cascade lasers can enable applications in multiple areas. Here, the authors demonstrate the adaptive control of the modes and emission spectra of quantum cascade random lasers through a spatially-tailored optical modulation of the active ...
S. Schönhuber +9 more
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A Comparison Study of Data Link with Medium-Wavelength Infrared Pulsed and CW Quantum Cascade Lasers
Photonics, 2021 In this paper, a comparison study of a quantum cascade laser used for signal transmission by free-space optics is presented. The main goal is to define the capabilities of medium-wavelength infrared lasers operated in pulsed or continuous wave (cw) mode ...
Janusz Mikołajczyk
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Data Link with a High-Power Pulsed Quantum Cascade Laser Operating at the Wavelength of 4.5 µm
Sensors, 2021 This article is a short study of the application of high-power quantum cascade lasers and photodetectors in medium-infrared optical wireless communications (OWC).
Janusz Mikołajczyk
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InAs-Based Quantum Cascade Lasers with Extremely Low Threshold
Photonics, 2022 We report InAs-based quantum cascade lasers (QCLs) operating near 14 µm with a threshold current density Jth as low as 0.6 kA/cm2 at room temperature. The threshold obtained is lower than the Jth of the best reported InP-based QCLs to date without facet ...
Kumar Kinjalk +5 more
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Lateral Modes in Quantum Cascade Lasers
Photonics, 2016 We will examine the waveguide mode losses in ridge-guided quantum cascade lasers. Our analysis illustrates how the low-loss mode for broad-ridge quantum cascade lasers (QCLs) can be a higher-order lateral waveguide mode that maximizes the feedback from ...
Gregory C. Dente, Michael Tilton
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Quantum cascade lasers with an integrated polarization mode converter [PDF]
, 2012 We discuss the design, fabrication and characterization of waveguide polarization mode converters for quantum cascade lasers operating at 4.6 μm. We have fabricated a quantum cascade laser with integrated polarization mode converter that emits light of ...
Dhirhe, D. +4 more
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