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quantum well

   Also found in: Acronyms, Wikipedia 0.01 sec.
quantum well [¦kwän·təm ′wel]
(electronics)
A thin layer of material (typically between 1 and 10 nanometers thick) within which the potential energy of an electron is less than outside the layer, so that the motion of the electron perpendicular to the layer is quantized.


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The rebounding photons boost the odds that other electrons in the quantum wells also will convert their energy into photons rather than heat, Gmachl notes.
In the infrared arena, focal plane arrays have replaced the scanned sensors and their complicated scanning mechanism, but a new technology, through Flir Systems and SaabTech, has entered the defence scene; it is known as the Quantum Well Infrared Photodetector.
They carefully explain methods of measuring properties of nanostructures, including spectroscopy, properties of individual nanoparticles, the chemistry of nanostructures, characteristics of polymer and biological nanostructures, cohesive energy, vibration and electronic properties, quantum wells (as well as wires and dots), carbon nanostructures, bulk nanostructured materials, mechanical properties, magnetism, nanoelectronics, spintronics, molecular electronics and photonics.
 
 
 
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