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    Liquid-nitrogen cooled, free-running single-photon sensitive detector at telecommunication wavelengths

    The measurement of light characteristics at the single- and few photon level plays a key role in many quantum optics applications. Often photodetection is preceded with the transmission of quantum light over l...

    M. Covi, B. Pressl, T. Günthner, K. Laiho, S. Krapick, C. Silberhorn in Applied Physics B (2015)