Journal article
Investigating the effects of sum-frequency conversions and surface impedance uniformity in traveling wave superconducting parametric amplifiers
- Abstract:
- Traveling wave parametric amplifiers (TWPAs) offer the most promising solution for high gain, broadband, and quantum noise limited amplification at microwave frequencies. Experimental realization of TWPAs has proved challenging with often major discrepancies between the theoretically predicted and the measured gain performance of the devices. Here, we extend the conventional modeling techniques to account for spatial variation in the surface impedance of the thin film and the parametric sum-frequency conversions effect, which subsequently results in accurate reproduction of experimental device behavior. We further show that such an analysis may be critical to ensure fabricated TWPAs can operate as designed.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 2.1MB, Terms of use)
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- Publisher copy:
- 10.1063/5.0192030
Authors
- Publisher:
- AIP Publishing
- Journal:
- Journal of Applied Physics More from this journal
- Volume:
- 135
- Issue:
- 12
- Article number:
- 124402
- Publication date:
- 2024-03-27
- Acceptance date:
- 2024-03-07
- DOI:
- EISSN:
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1089-7550
- ISSN:
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0021-8979
- Language:
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English
- Keywords:
- Pubs id:
-
1987643
- Local pid:
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pubs:1987643
- Deposit date:
-
2024-04-15
Terms of use
- Copyright holder:
- Klimovich et al.
- Copyright date:
- 2024
- Rights statement:
- © 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
- Licence:
- CC Attribution (CC BY)
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