PT Unknown AU Zhang, J Pearlman, A Slysz, W Verevkin, A Sobolewski, R Okunev, O Korneev, A Kouminov, P Smirnov, K Chulkova, G Gol’tsman, GN Lo, W Wilsher, K TI Infrared picosecond superconducting single-photon detectors for CMOS circuit testing SE CLEO/QELS PY 2003 BP Cmv4 DE NbN SSPD; SNSPD; Infrared; Quantum detectors; Electron beam lithography; Infrared detectors; Infrared radiation; Quantum efficiency; Single photon detectors; Superconductors AB Novel, NbN superconducting single-photon detectors have been developed for ultrafast, high quantum efficiency detection of single quanta of infrared radiation. Our devices have been successfully implemented in a commercial VLSI CMOS circuit testing system. ER