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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

While single-pixel superconducting nanowire single photon detectors (SNSPDs) have demonstrated remarkable efficiency and timing performance from the UV to near-IR, scaling these devices to large imaging arrays remains challenging. Here, we…

Instrumentation and Detectors · Physics 2020-02-26 Jason P. Allmaras , Emma E. Wollman , Andrew D. Beyer , Ryan M. Briggs , Boris A. Korzh , Bruce Bumble , Matthew D. Shaw

Superconducting nanowire single-photon detectors (SNSPDs) are the current leading technology for the detection of single-photons in the near-infrared (NIR) and short-wave infrared (SWIR) spectral regions, due to record performance in terms…

Generally, a superconducting nanowire single-photon detector (SNSPD) is composed of wires with a typical width of ~100 nm. Recent studies have found that superconducting strips with a micrometer-scale width can also detect single photons.…

Instrumentation and Detectors · Physics 2021-04-28 Guang-Zhao Xu , Wei-Jun Zhang , Li-Xing You , Jia-Min Xiong , Xing-Qu Sun , Hao Huang , Xin Ou , Yi-Ming Pan , Chao-Lin Lv , Hao Li , Zhen Wang , Xiao-Ming Xie

We report a compact, scalable, and high-performance superconducting nanowire single-photon detector (SNSPD) array by using a multichannel optical fiber array-coupled configuration. For single pixels with an active area of 18 um in diameter…

Instrumentation and Detectors · Physics 2021-01-29 Wei-Jun Zhang , Guang-Zhao Xu , Li-Xing You , Cheng-Jun Zhang , Hao Huang , Xin Ou , Xing-Qu Sun , Jia-Min Xiong , Hao Li , Zhen Wang , Xiao-Ming Xie

Superconducting nanowire single-photon detectors (SNSPDs) perform single-photon counting with exceptional sensitivity and time resolution at near-infrared wavelengths. State-of-the-art SNSPDs, based on 100 nm-wide, 4 to 5 nm thick NbN…

Quantum Physics · Physics 2015-05-20 F. Marsili , F. Najafi , E. Dauler , F. Bellei , X. Hu , M. C. Csete , R. Molnar , K. K. Berggren

Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths. These devices offer high efficiency, low dark counts and excellent…

Quantum Physics · Physics 2012-04-26 Chandra M. Natarajan , Michael G. Tanner , Robert H. Hadfield

Superconducting nanowire single-photon detectors (SNSPDs) have attracted remarkable interest for visible and near infrared single-photon detection, owing to their outstanding performance. Conventional SNSPDs are generally used as binary…

Applied Physics · Physics 2020-05-21 X. Q. Sun , W. J. Zhang , C. J. Zhang , L. X. You , G. Z. Xu , J. Huang , H. Li , Z. Wang , X. M. Xie

The concept of the radio-frequency superconducting nanowire single-photon detector (RF-SNSPD) allows frequency-division multiplexing (FDM) of the bias and readout lines of several SNSPDs. Using this method, a multi-pixel array can be…

Instrumentation and Detectors · Physics 2020-04-22 Steffen Doerner , Artem Kuzmin , Stefan Wuensch , Ilya Charaev , Michael Siegel

Since their inception, superconducting nanowire single-photon detectors have been enabling quantum optical applications and the rise of the photonic quantum industry. The evolution in the detector design and read-out strategies has led to…

Quantum Physics · Physics 2024-12-19 Lorenzo Stasi , Towsif Taher , Giovanni V. Resta , Hugo Zbinden , Rob Thew , Félix Bussières

Integrated arrays of Superconducting Nanowire Single Photon Detectors (SNSPDs) have shown capabilities such as Photon Number Resolution, single photon imaging and coincidences detection, and can be effectively used also in other different…

We demonstrate a 64-pixel free-space-coupled array of superconducting nanowire single photon detectors optimized for high detection efficiency in the near-infrared range. An integrated, readily scalable, multiplexed readout scheme is…

Instrumentation and Detectors · Physics 2015-06-11 M. S. Allman , V. B. Verma , M. Stevens , T. Gerrits , R. D. Horansky , A. E. Lita , F. Marsili , A. Beyer , M. D. Shaw , D. Kumor , R. 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

The superconducting nanowire single-photon detector (SNSPD) is a quantum-limit superconducting optical detector based on the Cooper-pair breaking effect by a single photon, which exhibits a higher detection efficiency, lower dark count…

Instrumentation and Detectors · Physics 2020-06-02 Lixing You

Satellite-ground quantum communication requires single-photon detectors of 850-nm wavelength with both high detection efficiency and large sensitive area. We developed superconducting nanowire single-photon detectors (SNSPDs) on…

We demonstrate a 16-pixel array of radio-frequency superconducting nanowire single-photon detectors with an integrated and scalable frequency-division multiplexing architecture, reducing the required bias and readout lines to a single…

Instrumentation and Detectors · Physics 2017-08-02 Steffen Doerner , Artem Kuzmin , Stefan Wuensch , Ilya Charaev , Florian Boes , Thomas Zwick , Michael Siegel

Niobium Nitride (NbN) nanowire is the most popular detection material of superconducting nanowire single photon detectors (SNSPDs) for high repetition rate and high efficiency. However, it has been assumed to be difficult for fabricating…

Applied Physics · Physics 2018-11-27 Qi Chen , Biao Zhang , Labao Zhang , Rui Ge , Ruiying Xu , Yang Wu , Xuecou Tu , Xiaoqing Jia , Lin Kang , Jian Chen , Peiheng Wu

Superconducting nanowire single-photon detector (SNSPD) with near-unity system efficiency is a key enabling, but still elusive technology for numerous quantum fundamental theory verifications and quantum information applications. The key…

Superconductivity · Physics 2020-12-30 Peng Hu , Hao Li , Lixing You , Heqing Wang , You Xiao , Jia Huang , Xiaoyan Yang , Weijun Zhang , Zhen Wang , Xiaoming Xie

For the last 50 years, superconducting detectors have offered exceptional sensitivity and speed for detecting faint electromagnetic signals in a wide range of applications. These detectors operate at very low temperatures and generate a…

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
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