Regensburg 2025 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 11: Superconductivity: Poster

TT 11.60: Poster

Monday, March 17, 2025, 15:00–18:00, P4

Simulation model on the trigger time in superconducting single-photon detectors — •Tim Janocha, Someshvaran Udayakumar, Stefan Kaiser, and Riccardo Bassoli — Technische Universität Dresden, Dresden, Deutschland

Superconducting nanowire single-photon detectors (SNSPDs) are promising quantum communication devices due to their high efficiency, low dark count rates and minimal timing jitter. Here we present a simulation model on the trigger time between photon absorption and detection triggering. Within the framework of the proposed model, the influence of the photon energy, bias current, and strip width are investigated and their influence on the device performance is discussed.

Keywords: Singel Nanowire Single-Photon Detecor; Theoretical detection model; Non-equilibrium dynamics; Superconductivity