PT Unknown AU Fiore, A Marsili, F Bitauld, D Gaggero, A Leoni, R Mattioli, F Divochiy, A Korneev, A Seleznev, V Kaurova, N Minaeva, O Gol’tsman, G TI Counting photons using a nanonetwork of superconducting wires SE Nano-Net PY 2009 BP 120 EP 122 DI 10.1007/978-3-642-02427-6_20 DE SSPD; SNSPD AB We show how the parallel connection of photo-sensitive superconducting nanowires can be used to count the number of photons in an optical pulse, down to the single-photon level. Using this principle we demonstrate photon-number resolving detectors with unprecedented sensitivity and speed at telecommunication wavelengths. PI Berlin, Heidelberg ER