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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

    Abstract

    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
    Volume17
    Issue number3
    DOIs
    Publication statusPublished - Sept 2007

    Keywords

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

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