Modeling Electrothermal Feedback of Superconducting Nanowire Single-Photon Detectors in SPICE

Superconducting nanowire single-photon detectors (SNSPDs) exhibit complex switching behaviors due to electrothermal feedback during the detection process. Modeling and understanding these behaviors are integral for designing superconducting devices; however, many models often prioritize accuracy ove...

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Veröffentlicht in:IEEE transactions on applied superconductivity Jg. 35; H. 9; S. 1 - 5
Hauptverfasser: Nguyen, Hanson, Simon, Alejandro, Foster, Reed, Berggren, Karl K.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.12.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Circuit simulation
Computational modeling
Cooling
Detectors
electrothermal modeling
Feedback
Heating systems
High temperature effects
Integrated circuit modeling
Integrated circuits
Mathematical models
Modelling
Nanowires
Numerical models
Photonics
Photons
simulation program with integrated circuit emphasis (SPICE)
SPICE
Superconducting devices
Superconducting integrated circuits
superconducting nanowire single-photon detectors (SNSPDs)
Superconductivity
Switches
Thermal analysis
ISSN:1051-8223, 1558-2515
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Zusammenfassung:Superconducting nanowire single-photon detectors (SNSPDs) exhibit complex switching behaviors due to electrothermal feedback during the detection process. Modeling and understanding these behaviors are integral for designing superconducting devices; however, many models often prioritize accuracy over computational speed and intuitive integration for circuit designers. Here, we build upon a growing architecture of simulation program with integrated circuit emphasis tools for superconducting nanowire devices by capturing complex residual heating effects in a compact thermal model of an SNSPD. We demonstrate that our model is comparable to more complicated thermal models of superconducting nanowire devices, including finite-element simulations, and is applicable for the fast development of SNSPD circuits.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2025.3625542