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Paul Dresselhaus (Fed)

News

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Publications

Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit

Author(s)
Alain Rufenacht, Anna Fox, Raegan Johnson, Benjamin Scheck, Paul Dresselhaus, Samuel Benz
This article presents a 2-V programmable Josephson voltage standard (PJVS) with dual microwave frequency inputs and multiple output taps. The design provides

Leakage Current Pathways in Josephson Arbitrary Waveform Synthesizer Standards

Author(s)
Raegan Johnson, Jesus Mejia, Alain Rufenacht, Anna Fox, Nathan Flowers-Jacobs, Frederic Overney, Paul Dresselhaus, Samuel Benz
The voltage errors related to ac leakage currents in Josephson arbitrary waveform synthesizer (JAWS) systems are significant contributors to the overall system
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Patents (2018-Present)

An automated comparison measurement between two PJVS systems using an analog nanovoltmeter

Josephson Voltage Standard

NIST Inventors
Samuel P. Benz , Paul Dresselhaus , Alain Rufenacht , Nathan Flowers-Jacobs and Anna Fox
It was determined that a device having simultaneous voltage reference signals would be useful for many measurement and calibration activities. A JVS advantageously having multiple output leads would meet this criterion, and provide such voltage references without the need for multiple systems
Depiction of superconducting waveform synthesizer.

Superconducting Waveform Synthesizer

NIST Inventors
Samuel P. Benz , Manuel Castellanos Beltran , Paul Dresselhaus and Pete Hopkins
We have invented a pulse quantizer that uses arrays of one or more Josephson junctions to create a pulse voltage output that is immune to differential pulse timing shifts. When the output pulse patterns are used to encode a waveform, for example, the waveform will be free from pulse timing shifts
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Created September 24, 2019, Updated December 8, 2022
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