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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…

We experimentally investigated the detection performance of highly disordered NbxTi1-xN based superconducting nanowire single photon detectors (SNSPDs). The dependence on the composition of the transition temperature Tc for NbxTi1-xN films…

Superconductivity · Physics 2022-10-28 Ruoyan Ma , Rui Shu , Xingyu Zhang , Aobo Yu , Huang Jia , You Xiao , Huiqin Yu , Xiaoyu Liu , Hao Li , Per Eklund , Xiaofu Zhang , Lixing You

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…

High-quality ultra-thin films of niobium nitride (NbN) are developed by plasma-enhanced atomic layer deposition (PEALD) technique. Superconducting nanowire single-photon detectors (SNSPDs) patterned from this material exhibit high switching…

Applied Physics · Physics 2020-01-08 Risheng Cheng , Sihao Wang , Hong X. Tang

Superconducting Nanowire Single-Photon Detectors (SNSPDs) are key building blocks for photonic quantum technologies due to their ability to detect single photons with ultra-high efficiency, low dark counts and fast temporal resolution.…

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

Superconducting nanowires used in single-photon detectors have been realized on amorphous or poly-crystalline films. Here, we report the use of single-crystalline NbN thin films for superconducting nanowire single-photon detectors (SNSPDs).…

Applied Physics · Physics 2020-10-28 Risheng Cheng , John Wright , Huili G. Xing , Debdeep Jena , Hong X. Tang

The influence of the reactive DC sputtering parameters on the superconducting properties of NbReN ultrathin films was investigated. A detailed study of the current-voltage characteristics of the plasma was performed to optimize the…

The lack of energy dissipation and abrupt electrical phase transition of superconductors favorite them for nanoscale technologies, including radiation detectors, and quantum technologies. Moreover, understanding the nanoscale behavior of…

Superconducting nanowire single photon detectors (SNSPDs) are fabricated directly on diamond substrates and their optical and electrical properties are characterized. Dark count performance and photon count rates are measured at varying…

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

Achieving homogeneous performance metrics between nominally identical pixels is challenging for the operation of arrays of superconducting nanowire single-photon detectors (SNSPDs). Here, we utilize local helium ion irradiation to…

We present superconducting nanowire single-photon detectors (SNSPDs) based on few-layer NbSe$_2$ fully encapsulated with hexagonal boron nitride (hBN), demonstrating single-photon sensitivity. Our fabrication process preserves the…

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

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

State readout of trapped-ion qubits with trap-integrated detectors can address important challenges for scalable quantum computing, but the strong rf electric fields used for trapping can impact detector performance. Here, we report on…

Superconducting Nanowire Single Photon Detector (SNSPD) emerges as a potential candidate in the multiple fields requiring sensitive and fast photodetection. While nanowires of low temperature superconducting detectors are mature with…

Superconductivity · Physics 2024-03-13 Souvik Haldar , Arun Sehrawat , Krishna B. Balasubramanian

We demonstrate high-performance nanowire superconducting single photon detectors (SSPDs) on ultrathin NbN films grown at a temperature compatible with monolithic integration. NbN films ranging from 150nm to 3nm in thickness were deposited…

Optics · Physics 2009-11-13 F. Marsili , D. Bitauld , A. Fiore , A. Gaggero , F. Mattioli , R. Leoni , M. Benkahoul , F. Levy

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 present an alternative approach to the fabrication of highly efficient superconducting nanowire single-photon detectors (SNSPDs) based on tungsten silicide. Using well-established technologies for the deposition of dielectric mirrors and…

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