Afterpulsing and Instability in Superconducting Nanowire Avalanche Photodetectors

F. Marsili; F. Najafi; E. Dauler; R. J. Molnar; K. K. Berggren

doi:10.1063/1.3691944

Afterpulsing and Instability in Superconducting Nanowire Avalanche Photodetectors

Instrumentation and Detectors 2015-06-04 v1 Optics Quantum Physics

Authors: F. Marsili , F. Najafi , E. Dauler , R. J. Molnar , K. K. Berggren

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Abstract

We investigated the reset time of superconducting nanowire avalanche photodetectors (SNAPs) based on 30 nm wide nanowires. We studied the dependence of the reset time of SNAPs on the device inductance and discovered that SNAPs can provide a speed-up relative to SNSPDs with the same area, but with some limitations: (1) reducing the series inductance of SNAPs (necessary for the avalanche formation) could result in the detectors operating in an unstable regime; (2) a trade-off exists between maximizing the bias current margin and minimizing the reset time of SNAPs; and (3) reducing the reset time of SNAPs below ~ 1 ns resulted in afterpulsing.

Keywords

superconducting nanowire avalanche photodetectors reset time afterpulsing instability inductance SNSPD

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@article{arxiv.1203.0065,
  title  = {Afterpulsing and Instability in Superconducting Nanowire Avalanche Photodetectors},
  author = {F. Marsili and F. Najafi and E. Dauler and R. J. Molnar and K. K. Berggren},
  journal= {arXiv preprint arXiv:1203.0065},
  year   = {2015}
}

Afterpulsing and Instability in Superconducting Nanowire Avalanche Photodetectors

Abstract

Keywords

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