Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Horst Rogalla"'
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-5
Microwave-driven Josephson junction arrays are the basis for dc and ac voltage standards, whose accuracy derives from quantized voltage pulses. These pulses are also used to synthesize voltage-noise reference signals that are used in noise thermometr
Autor:
Horst Rogalla, Nathan E. Flowers-Jacobs, Samuel P. Benz, S.A. Cybart, Adam C. Weis, Ethan Y. Cho, Hao Li, S. Berkowitz, J.C. LeFebvre
Publikováno v:
2019 IEEE International Superconductive Electronics Conference (ISEC).
Josephson junction arrays are the basis for quantum-accurate dc and ac voltage standards, including artificial voltage-noise references used in noise thermometry. I will describe our recent progress towards voltage synthesis using high-transition-tem
Autor:
J.H. Derking, Johannes Faas Burger, Horst Rogalla, Marcel ter Brake, P.P.P.M. Lerou, H.J. Holland
Publikováno v:
International Conference on Space Optics, ICSO 2008, 10566
The performance of electronic devices can often be improved by lowering the operating temperature resulting in lower noise and larger speed. Also, new phenomena can be applied at low temperatures, as for instance superconductivity. In order to fully
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a9febe26003f584954d140f7af82f7a
https://research.utwente.nl/en/publications/b03015a2-2c6b-4d51-9d72-3c4557beef7a
https://research.utwente.nl/en/publications/b03015a2-2c6b-4d51-9d72-3c4557beef7a
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 62:1512-1517
In 2010, the National Institute of Standards and Technology measured the Boltzmann constant $k$ with an electronic technique that measured the Johnson noise of a 100 $\Omega$ resistor at the triple point of water and used a voltage waveform synthesiz
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 62:1518-1523
A new quantum-voltage-calibrated Johnson noise thermometer was developed at the National Institute of Metrology to demonstrate the electrical approach that determines Boltzmann's constant $k$ , by comparing electrical and thermal noise power. A measu
Autor:
Alessio Pollarolo, Kevin J. Coakley, Horst Rogalla, Anna E. Fox, Samuel P. Benz, Weston L. Tew
Publikováno v:
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016).
Spectral aberration has been the main source of uncertainty in Johnson Noise Thermometry approach to measuring the Boltzmann constant. Recently, with newly developed hardware and the introduction of a novel fitting algorithm for analyzing the data, w
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 60:2427-2433
The National Institute of Standards and Technology has developed a quantum-voltage-noise-source-calibrated Johnson noise thermometer (JNT) to provide a new electronic measurement technique for determining the Boltzmann constant. Improvements in elect
Autor:
Chiharu Urano, Samuel P. Benz, Paul D. Dresselhaus, Alessio Pollarolo, Jifeng Qu, Horst Rogalla
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 60:2655-2659
Long integration periods are necessary to reach low uncertainty when measuring temperature through Johnson noise thermometry (JNT). The main goal of the National Institute of Standards and Technology JNT program is to achieve a combined relative unce
Autor:
Horst Rogalla
Publikováno v:
IEICE Transactions on Electronics. :272-279
Superconductivity and superconducting electronics have quite a prominent place in the European research environment and can look back onto a successful history. In recent years the European Framework programs helped to enhance the interaction between
Autor:
Paul D. Dresselhaus, Samuel P. Benz, Burm Baek, Matthew R. Pufall, William H. Rippard, Horst Rogalla, Stephen E. Russek
Publikováno v:
Physical Review Applied. 3
The combination of superconducting and magnetic materials to create novel superconducting devices has been motivated by the discovery of Josephson critical current (Ics) oscillations as a function of magnetic layer thickness and the demonstration of