Inhomogeneous critical current in nanowire superconducting single-photon detectors.

@article{Gaudio2014InhomogeneousCC,
  title={Inhomogeneous critical current in nanowire superconducting single-photon detectors.},
  author={Rosalinda Gaudio and K. Hoog and Zili Zhou and Dondu Sahin and Andrea Fiore},
  journal={Applied Physics Letters},
  year={2014},
  volume={105},
  pages={222602}
}
A superconducting thin film with uniform properties is the key to realize nanowire superconducting single-photon detectors (SSPDs) with high performance and high yield. To investigate the uniformity of NbN films, we introduce and characterize simple detectors consisting of short nanowires with length ranging from 100 nm to 15 μm. Our nanowires, contrary to meander SSPDs, allow probing the homogeneity of NbN at the nanoscale. Experimental results, endorsed by a microscopic model, show the… 

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