Inhomogeneous critical current in nanowire superconducting single-photon detectors
Inhomogeneous critical current in nanowire superconducting single-photon detectors
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 15{\mu}m. Our nanowires, contrary …