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Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

Fiber Coupled Single Photon Detector with Niobium Superconducting Nanowire

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  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_26,
        author={Go Fujii and Daiji Fukuda and Takayuki Numata and Akio Yoshizawa and Hidemi Tsuchida and Shuichiro Inoue and Tatsuya Zama},
        title={Fiber Coupled Single Photon Detector with Niobium Superconducting Nanowire},
        proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
        proceedings_a={QUANTUMCOMM},
        year={2012},
        month={10},
        keywords={Superconducting nanowire single photon detector Niobium Kinetic inductance},
        doi={10.1007/978-3-642-11731-2_26}
    }
    
  • Go Fujii
    Daiji Fukuda
    Takayuki Numata
    Akio Yoshizawa
    Hidemi Tsuchida
    Shuichiro Inoue
    Tatsuya Zama
    Year: 2012
    Fiber Coupled Single Photon Detector with Niobium Superconducting Nanowire
    QUANTUMCOMM
    Springer
    DOI: 10.1007/978-3-642-11731-2_26
Go Fujii,*, Daiji Fukuda1, Takayuki Numata1, Akio Yoshizawa1, Hidemi Tsuchida1, Shuichiro Inoue2, Tatsuya Zama1
  • 1: National Instiute of Advanced Industrial Science and Technolagy
  • 2: Nihon University
*Contact email: go-fujii@aist.go.jp

Abstract

We have fabricated Niobium-based superconducting single photon detector (Nb-SSPD) for realizing high detection efficiency and fast reset time. The Nb-SSPD consisted of a 7 nm-thick and 200 nm-wide Nb meander line and exhibited the critical temperature and critical current density of 4 K and 4.6×10 A/cm, respectively. The Nb-SSPD was coupled to an optical fiber, and the reset time of 2.5 ns was observed with illumination of laser pulses at 1550 nm wavelength.

Keywords
Superconducting nanowire single photon detector Niobium Kinetic inductance
Published
2012-10-11
http://dx.doi.org/10.1007/978-3-642-11731-2_26
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