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Goltsman GN. Ultrafast nanowire superconducting single-photon detector with photon number resolving capability. In: Arakawa Y, Sasaki M, Sotobayashi H, editors. Proc. SPIE. Vol 7236. SPIE; 2009. 72360D (1 to 11).
Abstract: In this paper we present a review of the state-of-the-art superconducting single-photon detector (SSPD), its characterization and applications. We also present here the next step in the development of SSPD, i.e. photon-number resolving SSPD which simultaneously features GHz counting rate. We have demonstrated resolution up to 4 photons with quantum efficiency of 2.5% and 300 ps response pulse duration providing very short dead time.
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