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

J. J. Renema*, Q. Wang, R. Gaudio, I. Komen, K. Op 'T Hoog, D. Sahin, A. Schilling, M. P. Van Exter, A. Fiore, A. Engel, M. J A De Dood

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

40 Citations (Scopus)

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 languageEnglish
Pages (from-to)4541-4545
Number of pages5
JournalNano Letters
Volume15
Issue number7
DOIs
Publication statusPublished - 8 Jul 2015

Keywords

  • nano-optics
  • nanowire
  • quantum tomography
  • Superconducting single photon detector
  • superconductivity

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    Renema, J. J., Wang, Q., Gaudio, R., Komen, I., Op 'T Hoog, K., Sahin, D., Schilling, A., Van Exter, M. P., Fiore, A., Engel, A., & De Dood, M. J. A. (2015). Position-Dependent Local Detection Efficiency in a Nanowire Superconducting Single-Photon Detector. Nano Letters, 15(7), 4541-4545. https://doi.org/10.1021/acs.nanolett.5b01103