Optimization of a Josephson voltage array based on frequency dependently damped superconductor-insulator-superconductor junctions

Juha Hassel; Heikki Seppä; Leif Grönberg; Ilkka Suni

doi:10.1063/1.1582381

Optimization of a Josephson voltage array based on frequency dependently damped superconductor-insulator-superconductor junctions

Juha Hassel
, Heikki Seppä
, Leif Grönberg
, Ilkka Suni

Research output: Contribution to journal › Article › Scientific › peer-review

17 Citations (Scopus)

Abstract

We have developed a programmable Josephson voltage standard based on an array of superconductor–insulator–superconductor junctions. The junctions are damped by an external frequency-dependent shunt circuit, which allows operation at Shapiro steps with n>1. We derive optimization criteria for the design parameters for a fast and stable array with low power consumption. An array able to generate 1.0 V_RMSac voltage signal with sub-ppm accuracy is experimentally demonstrated. Theoretically it is also shown that a fast programmable 10 V array can be realized.

Original language	English
Pages (from-to)	3510-3515
Number of pages	6
Journal	Review of Scientific Instruments
Volume	74
Issue number	7
DOIs	https://doi.org/10.1063/1.1582381
Publication status	Published - 2003
MoE publication type	A1 Journal article-refereed

Keywords

superconductor-insulator-superconductor devices
measurement standards
voltage measurement
superconducting arrays
superconducting microwave devices
millimetre wave measurement
Josephson junction
Josephson junction arrays

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10.1063/1.1582381

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title = "Optimization of a Josephson voltage array based on frequency dependently damped superconductor-insulator-superconductor junctions",

abstract = "We have developed a programmable Josephson voltage standard based on an array of superconductor–insulator–superconductor junctions. The junctions are damped by an external frequency-dependent shunt circuit, which allows operation at Shapiro steps with n>1. We derive optimization criteria for the design parameters for a fast and stable array with low power consumption. An array able to generate 1.0 VRMS ac voltage signal with sub-ppm accuracy is experimentally demonstrated. Theoretically it is also shown that a fast programmable 10 V array can be realized.",

keywords = "superconductor-insulator-superconductor devices, measurement standards, voltage measurement, superconducting arrays, superconducting microwave devices, millimetre wave measurement, Josephson junction, Josephson junction arrays",

author = "Juha Hassel and Heikki Sepp{\"a} and Leif Gr{\"o}nberg and Ilkka Suni",

note = "Project code: T2SU00067",

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T1 - Optimization of a Josephson voltage array based on frequency dependently damped superconductor-insulator-superconductor junctions

AU - Hassel, Juha

AU - Seppä, Heikki

AU - Grönberg, Leif

AU - Suni, Ilkka

N1 - Project code: T2SU00067

PY - 2003

Y1 - 2003

N2 - We have developed a programmable Josephson voltage standard based on an array of superconductor–insulator–superconductor junctions. The junctions are damped by an external frequency-dependent shunt circuit, which allows operation at Shapiro steps with n>1. We derive optimization criteria for the design parameters for a fast and stable array with low power consumption. An array able to generate 1.0 VRMS ac voltage signal with sub-ppm accuracy is experimentally demonstrated. Theoretically it is also shown that a fast programmable 10 V array can be realized.

AB - We have developed a programmable Josephson voltage standard based on an array of superconductor–insulator–superconductor junctions. The junctions are damped by an external frequency-dependent shunt circuit, which allows operation at Shapiro steps with n>1. We derive optimization criteria for the design parameters for a fast and stable array with low power consumption. An array able to generate 1.0 VRMS ac voltage signal with sub-ppm accuracy is experimentally demonstrated. Theoretically it is also shown that a fast programmable 10 V array can be realized.

KW - superconductor-insulator-superconductor devices

KW - measurement standards

KW - voltage measurement

KW - superconducting arrays

KW - superconducting microwave devices

KW - millimetre wave measurement

KW - Josephson junction

KW - Josephson junction arrays

U2 - 10.1063/1.1582381

DO - 10.1063/1.1582381

M3 - Article

SN - 0034-6748

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 7

ER -

Optimization of a Josephson voltage array based on frequency dependently damped superconductor-insulator-superconductor junctions

Abstract

Keywords

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