Title :
Stimulated power generation in ES-SIS junction arrays
Author :
Hassel, Juha ; Helistö, Panu ; Grönberg, Leif ; Seppä, Heikki ; Nissilä, Jaani ; Kemppinen, Antti
Author_Institution :
VTT Inf. Technol., Finland
fDate :
4/1/2005 12:00:00 AM
Abstract :
We present experimental results on new programmable Josephson voltage standards based on frequency dependently damped superconductor-insulator-superconductor (SIS) junctions. We introduce a design able to generate two independent floating voltages up to 1.5 V using a microwave frequency of 70 GHz. The array is developed for dc and ac voltage and impedance metrology. The design is optimized in terms of speed, power consumption, and stability. Stimulated power generation is shown to affect the performance of long SIS arrays. The collective dynamics of Josephson junctions is analyzed and a boundary condition for the design of long arrays is derived.
Keywords :
electric resistance measurement; measurement standards; superconductor-insulator-superconductor devices; voltage measurement; 1.5 V; 70 GHz; ES-SIS junction arrays; Josephson junctions; frequency dependently damped superconductor-insulator-superconductor independent floating voltages; impedance metrology; power consumption; programmable Josephson voltage standards; stimulated power generation; voltage metrology; Design optimization; Impedance; Josephson junctions; Metrology; Microwave frequencies; Microwave generation; Power generation; Superconducting devices; Superconducting microwave devices; Voltage; Josephson array; Josephson voltage; Josephson voltage standards;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2004.843119
