Single-photon detectors combining ultra-high efficiency,   detection-rates, and timing resolution
  Single-photon detection with high efficiency, high timing resolution, low dark counts and high photon detection-rates is crucial for a wide range of optical measurements. Although efficient detectors have been reported before, combining all performance parameters in a single device remains a challenge. Here, we show a broadband NbTiN superconducting nanowire detector with an efficiency exceeding 92%, over 150MHz photon detection-rate, a dark count-rate below 130Hz, operated in a Gifford-McMahon cryostat. Furthermore, with careful optimization of the detector design and readout electronics, we reach an ultra-low system timing jitter of 14.80ps (13.95ps decoupled) while maintaining high detection efficiencies. 
Iman Esmaeil Zadeh, Johannes W.N. Los, Ronan B.M. Gourgues, Violette   Steinmetz, Gabriele Bulgarini, Sergiy M. Dobrovolskiy...
physics.ins-det cond-mat.mes-hall physics.optics quant-ph