Single-photon detectors based on ultranarrow superconducting nanowires

Francesco Marsili, Faraz Najafi, Eric Dauler, Francesco Bellei, Xiaolong Hu, M. Csete, Richard J. Molnar, Karl K. Berggren

Research output: Contribution to journalArticle

124 Citations (Scopus)

Abstract

We report efficient single-photon detection (η = 20% at 1550 nm wavelength) with ultranarrow (20 and 30 nm wide) superconducting nanowires, which were shown to be more robust to constrictions and more responsive to 1550 nm wavelength photons than standard superconducting nanowire single-photon detectors, based on 90 nm wide nanowires. We also improved our understanding of the physics of superconducting nanowire avalanche photodetectors, which we used to increase the signal-to-noise ratio of ultranarrow-nanowire detectors by a factor of 4, thus relaxing the requirements on the read-out circuitry and making the devices suitable for a broader range of applications.

Original languageEnglish
Pages (from-to)2048-2053
Number of pages6
JournalNano Letters
Volume11
Issue number5
DOIs
Publication statusPublished - May 11 2011

Fingerprint

Nanowires
nanowires
Photons
Detectors
detectors
photons
Wavelength
Photodetectors
wavelengths
avalanches
photometers
constrictions
Signal to noise ratio
signal to noise ratios
Physics
requirements
physics

Keywords

  • SNSPDs
  • Superconducting nanowire single-photon detectors

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Marsili, F., Najafi, F., Dauler, E., Bellei, F., Hu, X., Csete, M., ... Berggren, K. K. (2011). Single-photon detectors based on ultranarrow superconducting nanowires. Nano Letters, 11(5), 2048-2053. https://doi.org/10.1021/nl2005143

Single-photon detectors based on ultranarrow superconducting nanowires. / Marsili, Francesco; Najafi, Faraz; Dauler, Eric; Bellei, Francesco; Hu, Xiaolong; Csete, M.; Molnar, Richard J.; Berggren, Karl K.

In: Nano Letters, Vol. 11, No. 5, 11.05.2011, p. 2048-2053.

Research output: Contribution to journalArticle

Marsili, F, Najafi, F, Dauler, E, Bellei, F, Hu, X, Csete, M, Molnar, RJ & Berggren, KK 2011, 'Single-photon detectors based on ultranarrow superconducting nanowires', Nano Letters, vol. 11, no. 5, pp. 2048-2053. https://doi.org/10.1021/nl2005143
Marsili F, Najafi F, Dauler E, Bellei F, Hu X, Csete M et al. Single-photon detectors based on ultranarrow superconducting nanowires. Nano Letters. 2011 May 11;11(5):2048-2053. https://doi.org/10.1021/nl2005143
Marsili, Francesco ; Najafi, Faraz ; Dauler, Eric ; Bellei, Francesco ; Hu, Xiaolong ; Csete, M. ; Molnar, Richard J. ; Berggren, Karl K. / Single-photon detectors based on ultranarrow superconducting nanowires. In: Nano Letters. 2011 ; Vol. 11, No. 5. pp. 2048-2053.
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