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arXiv · 1504.05003

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

Jelmer J. Renema·Qiang Wang·Rosalinda Gaudio·Irina Komen·Koen op 't Hoog·Dondu Sahin·Andreas Schilling·Martin P. van Exter·Andrea Fiore·Andreas Engel·Michiel J. A. de Dood
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Abstract

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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Jelmer J. Renema, Qiang Wang, Rosalinda Gaudio, Irina Komen, Koen op 't Hoog, Dondu Sahin, Andreas Schilling, Martin P. van Exter, Andrea Fiore, Andreas Engel, Michiel J. A. de Dood. 2015-04-20. Position-Dependent Local Detection Efficiency in a Nanowire Superconducting Single-Photon Detector. https://doi.org/10.1021/acs.nanolett.5b01103

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