Photon-Number-Resolution at Telecom Wavelength with Superconducting Nanowires

Francesco Marsili1,2, David Bitauld2, Andrea Fiore2, Alessandro Gaggero3, Francesco Mattioli3, Roberto Leoni3, Aleksander Divochiy4 and Gregory Gol'tsman4 1Ecole Polytechnique Federale de Lausanne (EPFL), Institute of Photonics and Quantum Electronics (IPEQ), Station 3, CH-1015 Lausanne, 2COBRA Research Institute, Eindhoven University of Technology, P.O. Box 513, NL5600MB Eindhoven, 3Istituto di Fotonica e Nanotecnologie (IFN), CNR, via Cineto Romano 42, 00156 Roma, 4Moscow State Pedagogical University (MSPU), Department of Physics, 119992 Moscow, 1Switzerland 2The Netherlands 3Italy 4Russian Federation