PT Journal AU Dauler, EA Robinson, BS Kerman, AJ Yang, JKW Rosfjord, EKM Anant, V Voronov, B Gol'tsman, G Berggren, KK TI Multi-element superconducting nanowire single-photon detector SO IEEE Trans. Appl. Supercond. JI IEEE Trans. Appl. Supercond. PY 2007 BP 279 EP 284 VL 17 IS 2 DI 10.1109/TASC.2007.897372 DE SSPD; SNSPD AB A multi-element superconducting nanowire single photon detector (MESNSPD) is presented that consists of multiple independently-biased superconducting nanowire single photon detector (SNSPD) elements that form a continuous active area. A two-element SNSPD has been fabricated and tested, showing no measurable crosstalk between the elements, sub-50-ps relative timing jitter, and four times the maximum counting rate of a single SNSPD with the same active area. The MESNSPD can have a larger active area and higher speed than a single-element SNSPD and the input optics can be designed so that the detector provides spatial, spectral or photon number resolution. ER