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Applied Physics Letters· 2021Q1

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

Iman Esmaeil Zadeh, Jin Chang, Johannes W. N. Los, Samuel Gyger et al.

Short summary

Superconducting nanowire single-photon detectors (SNSPDs) have evolved into essential tools for quantum photonics and other low-light applications, achieving near-unity detection efficiency, low dark counts, and picosecond resolution.

AI-generated from the title and abstract; the full text is not read.

Key points

  • SNSPDs are crucial for quantum photonics and low-light applications.
  • State-of-the-art SNSPDs offer near-unity detection efficiency, low dark counts, and picosecond time resolution.
  • Research has progressed significantly over two decades, leading to industrial efforts.
  • Future developments aim for photon-counting imaging, multi-pixel arrays, and integration with quantum photonic circuits.

AI-generated from the title and abstract; the full text is not read.

Abstract

Two decades after their demonstration, superconducting nanowire single-photon detectors (SNSPDs) have become indispensable tools for quantum photonics as well as for many other photon-starved applications. This invention has not only led to a burgeoning academic field with a wide range of applications but also triggered industrial efforts. Current state-of-the-art SNSPDs combine near-unity detection efficiency over a wide spectral range, low dark counts, short dead times, and picosecond time resolution. The present perspective discusses important milestones and progress of SNSPDs research, emerging applications, and future challenges and gives 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.

The authors' abstract, as published at the source. Applied Physics Letters, 2021 · DOI ↗

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Field: Instrumentation

InstrumentationPhysics and Astronomy