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Quantum-cascade lasers (QCLs) are semiconductor lasers that emit in the mid- to far-infrared portion of the electromagnetic spectrum and were first demonstrated by Jérôme Faist, Federico Capasso, Deborah Sivco, Carlo Sirtori, Albert Hutchinson, and Alfred Cho at Bell Laboratories in 1994.
A Quantum Cascade Detector (QCD) is a photodetector sensitive to infrared radiation. [2] The absorption of incident light is mediated by intersubband transitions in a semiconductor multiple-quantum-well structure. The term cascade refers to the characteristic path of the electrons inside the material bandstructure, induced by absorption of ...
Interband cascade lasers (ICLs) are a type of laser diode that can produce coherent radiation over a large part of the mid-infrared region of the electromagnetic spectrum. They are fabricated from epitaxially -grown semiconductor heterostructures composed of layers of indium arsenide (InAs), gallium antimonide (GaSb), aluminum antimonide (AlSb ...
As such, she works in the fields of optics and semiconductor laser technology. Gmachl has conceived several novel designs for solid-state lasers and her work has led to advances in the development of quantum cascade lasers. [citation needed] QC lasers are a rapidly evolving class of high-performance, mid-infrared, semiconductor light sources.
Quantum cascade laser: Mid-infrared to far-infrared. Research, Future applications may include collision-avoidance radar, industrial-process control and medical diagnostics such as breath analyzers. Quantum dot laser: wide range.
Laser direct infrared imaging (LDIR) is an infrared microscopy architecture that utilizes a tunable Quantum Cascade Laser (QCL) as the IR source. [1] This new reflectance-based architecture eliminates coherence artifacts typically associated with QCLs.
His work there focused mainly on mid-and far-infrared intersubband lasers. [3] In his time there, in 1998, Faist founded the spin-off company Alpes Lasers with the goal to commercialize the quantum cascade laser for scientific, industrial and medical use. In 2007, Faist became professor in the institute of quantum electronics at ETH Zürich ...
The spectroscopy is based on semiconductor quantum cascade laser frequency combs [1] [2] in the mid-infrared wavelength range. The company is based in Zurich, Switzerland and was founded in 2014 and acquired by Sensirion Holding in May 2021. [3]
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