Inhomogeneous critical current in nanowire superconducting single-photon detectors

@inproceedings{Gaudio2014InhomogeneousCC,
  title={Inhomogeneous critical current in nanowire superconducting single-photon detectors},
  author={Rosalinda Gaudio and Zhiwei Zhou and D{\"o}nd{\"u} Sahin},
  year={2014}
}
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 100nm to 15μm. Our nanowires, contrary to meander SSPDs, allow probing the homogeneity of NbN at the nanoscale. Experimental results, endorsed by a microscopic model, show the strongly… CONTINUE READING

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