64-pixel NbTiN superconducting nanowire single-photon detector array for spatially resolved photon detection

Shigehito Miki; Taro Yamashita; Zhen Wang; Hirotaka Terai

doi:10.1364/OE.22.007811

64-pixel NbTiN superconducting nanowire single-photon detector array for spatially resolved photon detection

Instrumentation and Detectors 2015-06-18 v1 Optics

Authors: Shigehito Miki , Taro Yamashita , Zhen Wang , Hirotaka Terai

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We present the characterization of two-dimensionally arranged 64-pixel NbTiN superconducting nanowire single-photon detector array for spatially resolved photon detection. NbTiN films deposited on thermally oxidized Si substrates enabled the high-yield production of high-quality SSPD pixels, and all 64 SSPD pixels showed uniform superconducting characteristics. Furthermore, all of the pixels showed single-photon sensitivity, and 60 of the 64 pixels showed a pulse generation probability higher than 90% after photon absorption. As a result of light irradiation from the single-mode optical fiber at different distances between the fiber tip and the active area, the variations of system detection efficiency in each pixel showed reasonable Gaussian distribution to represent the spatial distributions of photon flux intensity.

Keywords

superconducting nanowire single-photon detectors

Cite

@article{arxiv.1401.8107,
  title  = {64-pixel NbTiN superconducting nanowire single-photon detector array for spatially resolved photon detection},
  author = {Shigehito Miki and Taro Yamashita and Zhen Wang and Hirotaka Terai},
  journal= {arXiv preprint arXiv:1401.8107},
  year   = {2015}
}

Comments

11 pages, 5 figures

64-pixel NbTiN superconducting nanowire single-photon detector array for spatially resolved photon detection

Abstract

Keywords

Cite

Comments

Related papers