Results 11 to 20 of about 3,452 (196)

Interband cascade lasers with room temperature threshold current densities below 100 A/cm(2) [PDF]

open access: yesApplied Physics Letters, 2013
Interband Cascade Lasers (ICLs) with threshold current densities below 100 A/cm(2) in pulsed operation at room temperature are presented. The laser structure comprises 10 active stages of 41 nm length, each stage containing a W-quantum well active region
Höfling, Sven   +2 more
core   +4 more sources

Mid-Infrared Frequency Combs based on Single Section Interband Cascade Lasers [PDF]

open access: yesEPJ Web of Conferences, 2023
In this work we show Frequency Comb (FC) and short pulsed operation of mid-infrared Interband Cascade Lasers (ICLs) in a single long section. This is through the use of an adapted ultrafast Quantum Well Infrared Photodetectors (QWIPs), and correlating ...
Abajyan Pavel   +12 more
doaj   +1 more source

Modeling of Amplitude Squeezing in a Pump-Noise-Suppressed Interband Cascade Laser

open access: yesIEEE Photonics Journal, 2022
A semi-classical rate equation model for the amplitude squeezing of mid-infrared interband cascade lasers is presented based on Green's function method.
Shiyuan Zhao, Frederic Grillot
doaj   +1 more source

Mid-infrared III–V semiconductor lasers epitaxially grown on Si substrates

open access: yesLight: Science & Applications, 2022
There is currently much activity toward the integration of mid-infrared semiconductor lasers on Si substrates for developing a variety of smart, compact, sensors based on Si-photonics integrated circuits.
Eric Tournié   +8 more
doaj   +1 more source

Quartz‐Enhanced Photoacoustic Sensors for Detection of Eight Air Pollutants

open access: yesAdvanced Photonics Research, 2023
A quartz‐enhanced photoacoustic spectroscopy sensor architecture capable of detecting eight different air pollutants (CH4, NO2, CO2, N2O, CO, NO, SO2, and NH3) is reported.
Raffaele De Palo   +10 more
doaj   +1 more source

Unveiling quantum-limited operation of interband cascade lasers

open access: yesAPL Photonics, 2020
A comprehensive experimental analysis of the frequency fluctuations of a mid-infrared interband cascade laser, down to the quantum-limited operation, is reported.
Simone Borri   +4 more
doaj   +1 more source

Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser [PDF]

open access: yes, 2016
Detection of methane at 3.3μm using a DFB Interband Cascade Laser and gold coated integrating sphere is performed. A 10cm diameter sphere with effective path length of 54.5cm was adapted for use as a gas cell.
Davis, Nicholas M.   +3 more
core   +1 more source

Quantum cascade lasers with an integrated polarization mode converter [PDF]

open access: yes, 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
core   +2 more sources

Room temperature operation of single mode GaSb‐based DFB interband cascade lasers beyond 6.1 µm

open access: yesElectronics Letters, 2023
Single‐mode distributed feedback GaSb‐based interband cascade lasers with record emission beyond 6.1 µm are presented. The results are based on an epitaxial design with reduced resonant intersubband absorption in the valence band and rebalanced ...
Josephine Nauschütz   +5 more
doaj   +1 more source

Mid-infrared LEDs versus thermal emitters in IR dynamic scene simulation devices [PDF]

open access: yes, 2006
In a radical departure from conventional thermal emitter-based dynamic IR scene simulation devices, we have tested InAsSbP/InAs LEDs grown by liquid phase epitaxy and tuned at several peak-emitting wavelengths inside the mid-IR band.
Malyutenko, V. K., Zinovchuk, A. V.
core   +1 more source

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