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24 January 2011 Infrared plasmonic detectors
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Abstract
Plasmonic has demonstrated the ability to enhance performances of photodetectors at a resonant wavelength. Absorption in a photodetector can reach 100% using nanophotonic plasmonic array. Plasmonic devices are confining light at the interface metal/dielectric, as a consequence, detection volume is smaller (100 to 1000 times) than in usual photodetectors leading to a decrease in dark current of infrared photodetectors and therefore a higher working temperature. The second consequence of a short detection volume is a higher collection efficiency of photocarriers as the transit time is smaller than the lifetime.
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N. Péré-Laperne, S. Collin, F. Pardo, and J.-L. Pelouard "Infrared plasmonic detectors", Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 794512 (24 January 2011); https://doi.org/10.1117/12.870809
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