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Position-Dependent Local Detection Efficiency in a Nanowire Superconducting Single-Photon Detector

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 نشر من قبل Jelmer Renema
 تاريخ النشر 2015
  مجال البحث فيزياء
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We probe the local detection efficiency in a nanowire superconducting single-photon detector along the cross-section of the wire with a spatial resolution of 10 nm. We experimentally find a strong variation in the local detection efficiency of the device. We demonstrate that this effect explains previously observed variations in NbN detector efficiency as function of device geometry.

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