APL Photonics (May 2021)

Single-photon detection in the mid-infrared up to 10 μm wavelength using tungsten silicide superconducting nanowire detectors

  • V. B. Verma,
  • B. Korzh,
  • A. B. Walter,
  • A. E. Lita,
  • R. M. Briggs,
  • M. Colangelo,
  • Y. Zhai,
  • E. E. Wollman,
  • A. D. Beyer,
  • J. P. Allmaras,
  • H. Vora,
  • D. Zhu,
  • E. Schmidt,
  • A. G. Kozorezov,
  • K. K. Berggren,
  • R. P. Mirin,
  • S. W. Nam,
  • M. D. Shaw

DOI
https://doi.org/10.1063/5.0048049
Journal volume & issue
Vol. 6, no. 5
pp. 056101 – 056101-6

Abstract

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We developed superconducting nanowire single-photon detectors based on tungsten silicide, which show saturated internal detection efficiency up to a wavelength of 10 μm. These detectors are promising for applications in the mid-infrared requiring sub-nanosecond timing, ultra-high gain stability, low dark counts, and high efficiency, such as chemical sensing, LIDAR, dark matter searches, and exoplanet spectroscopy.