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We present the first detailed study of an 8-channel $2\times2$ mm$^{2}$ WSi superconducting microwire single photon detector (SMSPD) array exposed to 120 GeV proton beam and 8 GeV electron and pion beam at the Fermilab Test Beam Facility.…

Superconducting nanowire single photon detectors (SNSPDs) are the highest-performing technology for time-resolved single-photon counting from the UV to the near-infrared. The recent discovery of single-photon sensitivity in micrometer-scale…

We fabricated and characterised nanowire superconducting single-photon detectors (SSPDs) made of 4 nm thick amorphous Mo$_x$Si$_{1-x}$ films. At 1.7 K the best devices exhibit a detection efficiency up to 18% at 1.2 um wavelength of…

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

Superconducting nanowire single photon detectors (SNSPDs) are a leading detector technology for time-resolved single-photon counting from the ultraviolet to the near-infrared regime. The recent advancement in single-photon sensitivity in…

Instrumentation and Detectors · Physics 2025-10-09 Christina Wang , Cristián Peña , Si Xie , Emanuel Knehr , Boris Korzh , Jamie Luskin , Sahil Patel , Matthew Shaw , Valentina Vega

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…

We demonstrate high-efficiency superconducting nanowire single-photon detectors (SNSPDs) fabricated from MoSi thin-films. We measure a maximum system detection efficiency (SDE) of 87 +- 0.5 % at 1542 nm at a temperature of 0.7 K, with a…

Instrumentation and Detectors · Physics 2016-01-20 V. B. Verma , B. Korzh , F. Bussières , R. D. Horansky , S. D. Dyer , A. E. Lita , I. Vayshenker , F. Marsili , M. D. Shaw , H. Zbinden , R. P. Mirin , S. W. Nam

We report on the fabrication and characterization of single-photon-sensitive WSi superconducting detectors with wire widths from 1 {\mu}m to 3 {\mu}m. The devices achieve saturated internal detection efficiency at 1.55 {\mu}m wavelength and…

Shortly after their inception, superconducting nanowire single-photon detectors (SNSPDs) became the leading quantum light detection technology. With the capability of detecting single-photons with near-unity efficiency, high time…

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

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

We present an approach to increase the effective light-receiving area of superconducting nanowire single-photon detectors (SNSPD) by means of free-form microlenses that are printed in situ on top of the sensitive detector area using…

Superconducting nanowire single photon detectors (SNSPD or SSPD) are highly promising devices in the growing field of quantum information and communications technology. We have developed a practical SSPD system with our superconducting thin…

Quantum Physics · Physics 2016-11-17 Zhen Wang , Shigehito Miki , Mikio Fujiwara

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

We applied a recently developed fiber coupling technique to superconducting single photon detectors (SSPDs). As the detector area of SSPDs has to be kept as small as possible, coupling to an optical fiber has been either inefficient or…

Optics · Physics 2011-09-28 S. N. Dorenbos , R. W. Heeres , E. F. C Driessen , V. Zwiller

We investigate the detection efficiency of a spiral layout of a Superconducting Nanowire Single-Photon Detector (SNSPD). The design is less susceptible to the critical current reduction in sharp turns of the nanowire than the conventional…

Superconductivity · Physics 2018-07-04 D. Henrich , L. Rehm , S. Dörner , M. Hofherr , K. Ilin , A. Semenov , M. Siegel

Single photon detectors are indispensable tools in optics, from fundamental measurements to quantum information processing. The ability of superconducting nanowire single photon detectors to detect single photons with unprecedented…

We report on the impact of the stoichiometry of superconducting MoSi thin films on the performance of superconducting nanowire single-photon detectors (SNSPDs). Specifically, we investigate the relation between the film parameters critical…

The effective and convenient detection of single photons via advanced detectors with a large active area is becoming significant for quantum and classical applications. This work demonstrates the fabrication of a superconducting microstrip…

Instrumentation and Detectors · Physics 2023-05-17 Guang-Zhao Xu , Wei-Jun Zhang , Li-Xing You , Yu-Ze Wang , Jia-Min Xiong , Dong-Hui Fan , Ling Wu , Hui-Qin Yu , Hao Li , Zhen Wang

The observation of fast physical dynamics using optical techniques currently relies on indirect methods, such as pump-probe measurements. One reason for this is the lack of an efficient detector with high time resolution. Single-photon…

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