| 21. | Electron wave functions are repeated in each period of a three quantum well QCL active region.
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| 22. | This allows for extremely high performance high electron mobility, HEMT transistors, and other quantum well devices.
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| 23. | Quantum well infrared photodetectors are also based on quantum wells, and are used for infrared imaging.
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| 24. | Two closely spaced heterojunction interfaces may be used to confine electrons to a rectangular quantum well.
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| 25. | Where N is the number of quantum wells.
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| 26. | In 1998, Viaspace signed a memorandum of understanding with RGC to commercialize a Quantum well infrared photodetector.
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| 27. | He elaborated a theory of electron transport phenomena in quantum wells, classical and size-quantized films, and superlattices.
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| 28. | Briefly, as an electron hops from one quantum well to another neighbouring well it produces a phonon.
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| 29. | Lasers containing more than one quantum well layer are known as " multiple quantum well " lasers.
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| 30. | Extensive work has been performed on quantum well lasers based on gallium arsenide and indium phosphide wafers.
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