Superconducting Single-Photon Detector for Quantum Optics and Quantum Metrology
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Single photons can be detected by monitoring the change in voltage along a nanowire.
A superconducting nanowire single-photon detector (SNSPD) that can detect single photons at the wavelengths used for telecommunications was built at Heriot-Watt University and installed at NPL. This will help to support emerging quantum optics technologies for the telecommunications industry that place tough demands on single photon sources and detectors.
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