Abstract
We probe the local detection efficiency in a nanowire superconducting single-photon detector along the cross-section of the wire with a far subwavelength resolution. 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 a function of device geometry.
Original language | English |
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Pages (from-to) | 4541-4545 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 15 |
DOIs | |
Publication status | Published - 2015 |