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This is the simplest of the quantum cascade lasers. An optical waveguide is first fabricated out of the quantum cascade material to form the gain medium. The ends of the crystalline semiconductor device are then cleaved to form two parallel mirrors on either end of the waveguide, thus forming a Fabry–Pérot resonator. The residual ...
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 ...
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 ...
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.
In 2004, he received the Chisesi-Tomassoni award for his pioneering work on the quantum-cascade laser. In 2005 he received, jointly with Nobel Laureates Frank Wilczek and Anton Zeilinger (University of Vienna), the King Faisal International Prize for Science for his research on quantum cascade lasers. The citation called him "one of the most ...
Download as PDF; Printable version; In other projects ... A cascading of intersubband transitions is the mechanism behind a quantum cascade laser which produces a ...
Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).
A distributed-feedback laser (DFB) is a type of laser diode, quantum-cascade laser or optical-fiber laser where the active region of the device contains a periodically structured element or diffraction grating. The structure builds a one-dimensional interference grating (Bragg scattering), and the grating provides optical feedback for the laser.