| dbo:abstract |
Ein Quantentopf-Infrarot-Photodetektor (englisch quantum well infrared photodetector, kurz QWIP-Detektor) ist ein Halbleiterdetektor zum Nachweis von Infrarotstrahlung insbesondere im Bereich 8…14 µm. Alternierende dünne Schichten (typisch um 50) aus III-V-Halbleitern (z. B. AlGaAs/GaAs) mit unterschiedlichen Bandabständen bilden Quantentöpfe, die Infrarotstrahlung absorbieren und Ladungsträger freisetzen. (de) Un QWIP (Quantum well Infrared Photodetector en inglés), "Fotodetector de Infrarrojo de pozos cuánticos" es un dispositivo optoelectrónico fabricado mediante diferentes materiales semiconductores que permite la detección de radiación infrarroja. Uno de los más comunes utiliza AlGaAs y GaAs (Arseniuro de Galio-Aluminio y Arseniuro de Galio) como componentes. (es) A Quantum Well Infrared Photodetector (QWIP) is an infrared photodetector, which uses electronic intersubband transitions in quantum wells to absorb photons. In order to be used for infrared detection, the parameters of the quantum wells in the quantum well infrared photodetector are adjusted so that the energy difference between its first and second quantized states match the incoming infrared photon energy. QWIPs are typically made of gallium arsenide, a material commonly found in smartphones and high-speed communications equipment. Depending on the material and the design of the quantum wells, the energy levels of the QWIP can be tailored to absorb radiation in the infrared region from 3 to 20 µm. QWIPs are one of the simplest quantum mechanical device structures that can detect mid-wavelength and long-wavelength infrared radiation. They are known for their stability, high pixel-to-pixel uniformity, and high-pixel operability. (en) Le QWIP (Quantum Well Infrared Photodetector : en français : « photodétecteur infrarouge à puits quantiques » est un détecteur de rayonnement infrarouge. La gamme de longueurs d'onde couverte en 2007 s'étend de 3 µm à plus de 30 µm. Ce type de détecteur est sensible au rayonnement thermique émis par tout corps dont la température n'est pas nulle (selon la loi de rayonnement du corps noir introduite par Max Planck). (fr) |
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http://www.armyscienceconference.com/manuscripts/N/NO-001.pdf/ https://web.archive.org/web/20060110102958/http:/qwip.jpl.nasa.gov/ |
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| rdfs:comment |
Ein Quantentopf-Infrarot-Photodetektor (englisch quantum well infrared photodetector, kurz QWIP-Detektor) ist ein Halbleiterdetektor zum Nachweis von Infrarotstrahlung insbesondere im Bereich 8…14 µm. Alternierende dünne Schichten (typisch um 50) aus III-V-Halbleitern (z. B. AlGaAs/GaAs) mit unterschiedlichen Bandabständen bilden Quantentöpfe, die Infrarotstrahlung absorbieren und Ladungsträger freisetzen. (de) Un QWIP (Quantum well Infrared Photodetector en inglés), "Fotodetector de Infrarrojo de pozos cuánticos" es un dispositivo optoelectrónico fabricado mediante diferentes materiales semiconductores que permite la detección de radiación infrarroja. Uno de los más comunes utiliza AlGaAs y GaAs (Arseniuro de Galio-Aluminio y Arseniuro de Galio) como componentes. (es) Le QWIP (Quantum Well Infrared Photodetector : en français : « photodétecteur infrarouge à puits quantiques » est un détecteur de rayonnement infrarouge. La gamme de longueurs d'onde couverte en 2007 s'étend de 3 µm à plus de 30 µm. Ce type de détecteur est sensible au rayonnement thermique émis par tout corps dont la température n'est pas nulle (selon la loi de rayonnement du corps noir introduite par Max Planck). (fr) A Quantum Well Infrared Photodetector (QWIP) is an infrared photodetector, which uses electronic intersubband transitions in quantum wells to absorb photons. In order to be used for infrared detection, the parameters of the quantum wells in the quantum well infrared photodetector are adjusted so that the energy difference between its first and second quantized states match the incoming infrared photon energy. QWIPs are typically made of gallium arsenide, a material commonly found in smartphones and high-speed communications equipment. Depending on the material and the design of the quantum wells, the energy levels of the QWIP can be tailored to absorb radiation in the infrared region from 3 to 20 µm. (en) |
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Quantentopf-Infrarot-Photodetektor (de) QWIP (es) Photodétecteur infrarouge à puits quantiques (fr) Quantum well infrared photodetector (en) |
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