Current distribution in a parallel configuration superconducting strip-line detector

A. Casaburi; R. M. Heath; M. G. Tanner; R. Cristiano; M. Ejrnaes; C. Nappi; R. H. Hadfield

doi:10.1063/1.4813087

Current distribution in a parallel configuration superconducting strip-line detector

A. Casaburi^*, R. M. Heath, M. G. Tanner, R. Cristiano, M. Ejrnaes, C. Nappi, R. H. Hadfield

^*Corresponding author for this work

School of Engineering & Physical Sciences

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Abstract

Superconducting detectors based on parallel microscopic strip-lines are promising candidates for single molecule detection in time-of-flight mass spectrometry. The device physics of this configuration is complex. In this letter, we employ nano-optical techniques to study the variation of current density, count rate, and pulse amplitude transversely across the parallel strip device. Using the phenomenological London theory, we are able to correlate our results to a non-uniform current distribution between the strips, governed by the London magnetic penetration depth. This fresh perspective convincingly explains anomalous behaviour in large area parallel superconducting strip-line detectors reported in previous studies. (C) 2013 AIP Publishing LLC.

Original language	English
Article number	013503
Number of pages	4
Journal	Applied Physics Letters
Volume	103
Issue number	1
DOIs	https://doi.org/10.1063/1.4813087
Publication status	Published - 1 Jul 2013

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title = "Current distribution in a parallel configuration superconducting strip-line detector",

abstract = "Superconducting detectors based on parallel microscopic strip-lines are promising candidates for single molecule detection in time-of-flight mass spectrometry. The device physics of this configuration is complex. In this letter, we employ nano-optical techniques to study the variation of current density, count rate, and pulse amplitude transversely across the parallel strip device. Using the phenomenological London theory, we are able to correlate our results to a non-uniform current distribution between the strips, governed by the London magnetic penetration depth. This fresh perspective convincingly explains anomalous behaviour in large area parallel superconducting strip-line detectors reported in previous studies. (C) 2013 AIP Publishing LLC.",

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AU - Casaburi, A.

AU - Heath, R. M.

AU - Tanner, M. G.

AU - Cristiano, R.

AU - Ejrnaes, M.

AU - Nappi, C.

AU - Hadfield, R. H.

PY - 2013/7/1

Y1 - 2013/7/1

N2 - Superconducting detectors based on parallel microscopic strip-lines are promising candidates for single molecule detection in time-of-flight mass spectrometry. The device physics of this configuration is complex. In this letter, we employ nano-optical techniques to study the variation of current density, count rate, and pulse amplitude transversely across the parallel strip device. Using the phenomenological London theory, we are able to correlate our results to a non-uniform current distribution between the strips, governed by the London magnetic penetration depth. This fresh perspective convincingly explains anomalous behaviour in large area parallel superconducting strip-line detectors reported in previous studies. (C) 2013 AIP Publishing LLC.

AB - Superconducting detectors based on parallel microscopic strip-lines are promising candidates for single molecule detection in time-of-flight mass spectrometry. The device physics of this configuration is complex. In this letter, we employ nano-optical techniques to study the variation of current density, count rate, and pulse amplitude transversely across the parallel strip device. Using the phenomenological London theory, we are able to correlate our results to a non-uniform current distribution between the strips, governed by the London magnetic penetration depth. This fresh perspective convincingly explains anomalous behaviour in large area parallel superconducting strip-line detectors reported in previous studies. (C) 2013 AIP Publishing LLC.

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SN - 0003-6951

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Current distribution in a parallel configuration superconducting strip-line detector

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