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231226s2021 xx |||||o 00| ||eng c |
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|a 10.1063/5.0043369
|2 doi
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|a eng
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|a Wessels, Abigail
|e verfasserin
|4 aut
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|a A model for excess Johnson noise in superconducting transition-edge sensors
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|c 2021
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 17.04.2023
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Transition-edge sensors (TESs) are two-dimensional superconducting films utilized as highly sensitive detectors of energy or power. These detectors are voltage biased in the superconducting-normal transition where the film resistance is both finite and a strong function of temperature. Unfortunately, the amount of electrical noise observed in TESs exceeds the predictions of existing noise theories. We describe a possible mechanism for the unexplained excess noise, which we term "mixed-down noise." The source is Johnson noise, which is mixed down to low frequencies by Josephson oscillations in devices with a nonlinear current-voltage relationship. We derive an expression for the power spectral density of this noise and show that its predictions agree with measured data
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|a Journal Article
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|a Morgan, Kelsey
|e verfasserin
|4 aut
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1 |
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|a Gard, Johnathon D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hilton, Gene C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mates, John A B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Reintsema, Carl D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schmidt, Daniel R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Swetz, Daniel S
|e verfasserin
|4 aut
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| 700 |
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|a Ullom, Joel N
|e verfasserin
|4 aut
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| 700 |
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|a Vale, Leila R
|e verfasserin
|4 aut
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| 700 |
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|a Bennett, Douglas A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Applied physics letters
|d 1998
|g 118(2021), 20 vom: 18.
|w (DE-627)NLM098165984
|x 0003-6951
|7 nnas
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| 773 |
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|g volume:118
|g year:2021
|g number:20
|g day:18
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|u http://dx.doi.org/10.1063/5.0043369
|3 Volltext
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