Modeling electrothermal feedback of superconducting nanowire single photon detectors in SPICE
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914071111008256 |
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| author | Nguyen, Hanson Simon, Alejandro Foster, Reed Berggren, Karl K. |
| author_facet | Nguyen, Hanson Simon, Alejandro Foster, Reed Berggren, Karl K. |
| contents | Superconducting nanowire single-photon detectors (SNSPDs) exhibit complex switching behaviors due to electrothermal feedback during the detection process. Modeling and understanding these behaviors is 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 SPICE 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_02791 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Modeling electrothermal feedback of superconducting nanowire single photon detectors in SPICE Nguyen, Hanson Simon, Alejandro Foster, Reed Berggren, Karl K. Applied Physics Superconducting nanowire single-photon detectors (SNSPDs) exhibit complex switching behaviors due to electrothermal feedback during the detection process. Modeling and understanding these behaviors is 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 SPICE 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. |
| title | Modeling electrothermal feedback of superconducting nanowire single photon detectors in SPICE |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2508.02791 |