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Quantum Dots Form Heart of IR Detector

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Daniel S. Burgess

A collaboration of the University of Southern California in Los Angeles and the University of Texas at Austin has produced a quantum-dot photodetector for use in the 8- to 12-µm atmospheric window. The performance of the cooled device is competitive with that of current quantum-well infrared photodetectors and approximately an order of magnitude lower than that of well-established HgCdTe intrinsic-type detectors, suggesting its suitability for applications in the near-term such as night vision, target-tracking and environmental monitoring. An infrared photodetector based on InAs...Read full article

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    Published: July 2004
    Glossary
    atmospheric window
    A range of wavelengths within which radiation transmitted through the atmosphere suffers relatively little absorption by atmospheric gases.
    atmospheric windowConsumerquantum-dot photodetectorquantum-well infrared photodetectorsResearch & TechnologySensors & DetectorsTech PulseUniversity of Southern CaliforniaUniversity of Texas

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