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Single-photon sources and detectors are key enabling technologies in quantum information processing. Nanowire-based superconducting single-photon detectors (SSPDs) offer single-photon detection from the visible well into the infrared with…

Quantum Physics · Physics 2009-11-13 Robert H. Hadfield , Martin J. Stevens , Richard P. Mirin , Sae Woo Nam

We present the characteristics of superconducting nanowire single photon detectors (SNSPDs) fabricated from amorphous Mo0.75Ge0.25 thin-films. Fabricated devices show a saturation of the internal detection efficiency at temperatures below 1…

Superconductivity · Physics 2015-06-18 V. B. Verma , A. E. Lita , M. R. Vissers , F. Marsili , D. P. Pappas , R. P. Mirin , S. W. Nam

We present a novel design of a superconducting nanowire single photon detector (SNSPD) fabricated on a core of a single mode optical fiber. The proposed design allows high overlap between the fiber light mode and the detector, and…

Superconductivity · Physics 2015-06-12 Gil Bachar , Ilya Baskin , Oleg Shtempluck , Eyal Buks

Latching is a serious issue in superconducting nanowire single-photon detector (SNSPD) technology. By extensively studying the electrical transportation characteristics of SNSPD with different bias schemes, we conclude that latching is a…

Superconducting nanowire single-photon detectors (SNSPDs) are indispensable in fields such as quantum science and technology, astronomy, and biomedical imaging, where high detection efficiency, low dark count rates and high timing accuracy…

Scaling the photon-detection area of superconducting nanowire single-photon detectors (SNSPDs) has traditionally been achieved by nanowire meandering. However, material inhomogeneities and fabrication-induced defects, such as line-edge…

A large-format mid-infrared single-photon imager with very low dark count rates would enable a broad range of applications in fields like astronomy and chemistry. Superconducting nanowire single-photon detectors (SNSPDs) are a mature…

Quantum Physics · Physics 2024-04-05 Benedikt Hampel , Richard P. Mirin , Sae Woo Nam , Varun B. Verma

Detecting non-classical light is a central requirement for photonics-based quantum technologies. Unrivaled high efficiencies and low dark counts have positioned superconducting nanowire single photon detectors (SNSPDs) as the leading…

Superconducting nanowire single photon detectors are capable of single-photon detection across a large spectral range, with near unity detection efficiency, picosecond timing jitter, and sub-10 $\mu$m position resolution at rates as high as…

Instrumentation and Detectors · Physics 2020-03-18 T. Polakovic , W. R. Armstrong , V. Yefremenko , J. E. Pearson , K. Hafidi , G. Karapetrov , Z. -E. Meziani , V. Novosad

Statistical studies on the performance of different superconducting nanowire single-photon detectors (SNSPDs) on one chip suggested that random constrictions existed in the nanowire that were barely registered by scanning electron…

Over the past decade, multi-element superconducting nanowire single-photon detectors (SNSPDs) have emerged as the leading single-photon detection technology due to their exceptional system detection efficiency (SDE), ultrahigh timing…

Optics · Physics 2025-12-22 Amir Targholizadeh , Grigoriy Y. Nikulin , Pankaj K. Jha

The fast development of superconducting nanowire single photon detector (SNSPD) in the past decade has enabled many advances in quantum information technology. The best system detection efficiency (SDE) record at 1550 nm wavelength was 93%…

Superconductivity · Physics 2017-10-16 W. J. Zhang , L. X. You , H. Li , J. Huang , C. L. Lv , L. Zhang , X. Y. Liu , J. J. Wu , Z. Wang , X. M. Xie

Single-photon detection via absorption in current-biased nanoscale superconducting structures has become a preferred technology in quantum optics and related fields. Single-mode fiber packaged devices have seen new records set in detection…

Quantum Physics · Physics 2022-05-17 Dileep V. Reddy , Negar Otrooshi , Sae Woo Nam , Richard P. Mirin , Varun B. Verma

Superconducting nanowire single-photon detectors (SNSPDs) with high timing resolution and low background counts in the mid infrared (MIR) have the potential to open up numerous opportunities in fields such as exoplanet searches, direct dark…

State-of-the-art Superconducting Nanowire Single Photon Detectors based on low-Tc materials reach 100% quantum efficiency. However, the response time is limited to >1-10 ns. Recently, it has been shown that due to a much lower kinetic…

Applied Physics · Physics 2021-10-05 Sergey Cherednichenko , Narendra Acharya , Evgenii Novoselov , Vladimir Drakinskiy

The near-unity system detection efficiency (SDE) and excellent timing resolution of superconducting nanowire single-photon detectors (SNSPDs), combined with their other merits, have enabled many classical and quantum photonic applications.…

Quantum Physics · Physics 2022-04-12 Yun Meng , Kai Zou , Nan Hu , Liang Xu , Xiaojian Lan , Stephan Steinhauer , Samuel Gyger , Val Zwiller , Xiaolong Hu

Superconducting nanowire single-photon detectors (SNSPD), owing to their unique performance, are currently the standard detector in most demanding single-photon experiments. One important metric for any single-photon detector is the…

Instrumentation and Detectors · Physics 2025-10-22 Hui Wang , Nikita Dmitrievic Orlov , Niels Noordzij , Thomas Descamps , J. W. Niels Los , Val Zwiller , Iman Esmaeil Zadeh

Here, we report on successful operation of a NbN thin film superconducting nanowire single-photon detector (SNSPD) in a coherent mode (as a mixer) at the telecommunication wavelength of 1550 nm. Providing the Local Oscillator power of the…

Photon-number resolving (PNR) single-photon detectors are an enabling technology in many areas such as photonic quantum computing, non-classical light source characterisation and quantum imaging. Here, we demonstrate high-efficiency PNR…

Superconducting nanowire single-photon detectors are an ideal match for integrated quantum photonic circuits due to their high detection efficiency for telecom wavelength photons. Quantum optical technology also requires single-photon…

Optics · Physics 2013-06-04 Carsten Schuck , Wolfram H. P. Pernice , Hong X. Tang