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Kilopixel array of superconducting nanowire single-photon detectors.

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TLDR
A 1024-element near-infrared imaging array of superconducting nanowire single photon detectors (SNSPDs) using a 32×32 row-column multiplexing architecture is presented, making it the largest SNSPD array reported to date in terms of both active area and pixel count.
Abstract
We present a 1024-element near-infrared imaging array of superconducting nanowire single photon detectors (SNSPDs) using a 32×32 row-column multiplexing architecture. The array has an active area of 0.96 × 0.96 mm, making it the largest SNSPD array reported to date in terms of both active area and pixel count. Using a 64-channel time-tagging readout, we have characterized the array’s yield, efficiency, and timing resolution. Large arrays of SNSPDs are desirable for applications such as imaging, spectroscopy, or particle detection.

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Journal ArticleDOI

Superconducting nanowire single-photon detectors : A perspective on evolution, state-of-the-art, future developments, and applications

TL;DR: An outlook on technological developments required to bring SNSPDs to the next level: a photon-counting, fast time-tagging imaging, and multi-pixel technology that is also compatible with quantum photonic integrated circuits.
Journal ArticleDOI

2022 Roadmap on integrated quantum photonics

TL;DR: In this paper , the status, current and future challenges, and emerging technologies in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing are highlighted.
Journal ArticleDOI

Detecting telecom single photons with (99.5 − 2.07 + 0.5 )% system detection efficiency and high time resolution

TL;DR: In this article, the SiO2/Au membrane enables broadband absorption in small SNSPDs, offering high detection efficiency in combination with high timing performance with low-noise cryogenic amplifiers operated in the same cryostat, achieving a timing jitter in the range of 15-26 ps.
Journal ArticleDOI

Unscrambling entanglement through a complex medium

TL;DR: In this paper, the authors demonstrate the transport of six-dimensional spatial-mode entanglement through a 2-m-long, commercial multimode fiber with 84.4% fidelity.
References
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Journal ArticleDOI

Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors

TL;DR: The keys generated in the first quantum key distribution experiment to enable the creation of secure keys over 42 dB channel loss and 200 km of optical fibre are secure against both general collective attacks on individual photons and a specific collective attack on multiphotons.
Journal ArticleDOI

Quantum storage of photonic entanglement in a crystal

TL;DR: The demonstration of entanglement between a photon at a telecommunication wavelength and a single collective atomic excitation stored in a crystal is reported, paving the way for building multiplexed quantum repeaters for long-distance quantum networks.
Proceedings ArticleDOI

Overview and Results of the Lunar Laser Communication Demonstration

TL;DR: An overview of the system architecture and the several terminals, basic operations of both the link and the whole system, and some typical results are given.
Journal ArticleDOI

Kilometre-range, high resolution depth imaging using 1560 nm wavelength single-photon detection

TL;DR: By using a scanning transceiver which incorporated a free-running, low noise superconducting nanowire single-photon detector, this paper was able to obtain centimeter resolution depth images of low-signature objects in daylight at stand-off distances of the order of one kilometer at the relatively eye-safe wavelength of 1560 nm.
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