Progress Toward Practical AC and DC Josephson Voltage Standards at NIST

Published

September 21, 2005

Author(s)

Samuel Benz, Charles J. Burroughs, Paul Dresselhaus, Nicolas Hadacek, Yonuk Chong

Abstract

For the past 10 years NIST has been developing the next generation of voltage standard systems based on arrays of normal-metal barrier Josephson junctions. We have developed stable, programmable dc standards capable of providing intrinsically stable voltages up to 3.5 V. The first ac Josephson standards have also been demonstrated at audio frequencies with output voltages of 136 mV rms and ppm accuracy. We will describe the features and characteristics of these systems as well as the Josephson junction and system technology that makes them possible.

Proceedings Title

Proc. VI Semetro

Conference Dates

September 21-23, 2005

Conference Location

Rio de Janeiro, 1, BR

Conference Title

VI Semetro 6th International Seminar on Electrical Metrology

Pub Type

Conferences

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Keywords

Josephson array, microwave, superconductor, voltage standard, waveform synthesis

Citation

Benz, S. , Burroughs, C. , Dresselhaus, P. , Hadacek, N. and Chong, Y. (2005), Progress Toward Practical AC and DC Josephson Voltage Standards at NIST, Proc. VI Semetro, Rio de Janeiro, 1, BR, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31974 (Accessed October 9, 2025)