Counting Photons Using a Nanonetwork of Superconducting Wires (original) (raw)

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 2009

Abstract

We show how the parallel connection of photo-sensitive supercon-ducting 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.

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