Physical modeling of hot-electron superconducting single-photon detectors

Zhizhong Yan*, A. Hamed Majedi, Safieddin Safavi-Naeini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


In this paper, we treat the incident photons as an electromagnetic plane wave and simulate the wave power coupling to the the hot-electron superconducting single-photon detector to investigate its connection with the experimental system quantum efficiency over different wavelengths. Then we propose a lumped equivalent circuit model based on the kinetic inductance variation induced by the incident photon stream when the serpentine superconducting thin-film nano-wire is dc-biased close to its critical current. The computed output voltage matches experimental results for both amplitude and frequency.

Original languageEnglish
Pages (from-to)3789-3794
Number of pages6
JournalIEEE Transactions on Applied Superconductivity
Issue number3
Publication statusPublished - Sep 2007


  • Circuit simulation
  • Electromagnetic (EM) propagation
  • Photonics
  • Quantum optics
  • Superconducting devices
  • Superconducting optoelectronics
  • Superconducting radiation detectors

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