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Hamamatsu Corp. - Earth Innovations LB 2/24

Two Wells Are Better than One for IR Detectors

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Hank Hogan

Researchers at Princeton University in New Jersey have demonstrated that two wells are better than one as far as quantum-well infrared photodetectors are concerned. The key, as demonstrated in prototype devices, lies in making dual wells that are separate and unequal. This enables infrared detection over a wider spectral range than is otherwise possible, and it produces detectors that are more robust. "Unlike all other schemes demonstrated so far, the detector can be biased at any voltage and can be operated at any temperature below the background-limited temperature," said Amlan Majumdar,...Read full article

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    Published: August 2004
    defenseindustrialPrinceton Universityprototype devicesquantum-well infrared photodetectorsResearch & TechnologySensors & Detectors

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