1 V and 10 V SNS Programmable Voltage Standards for 70 GHz

Mueller, Franz H.; Behr, R.; Weimann, Thomas; Palafox, L.; Olaya, D.; Dresselhaus, Paul D.; Benz, Samuel P.

doi:10.1109/tasc.2009.2017911

Cited by 106 publications

(71 citation statements)

References 22 publications

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“…In our experiment, recently developed Nb-Si barrier junctions 13,14 were adopted to fabricate a series array including N = 6972 junctions on silicon substrate with a dielectric constant of 11.9 and dimensions of 10ϫ 10ϫ 0.38 mm 3 . The overall view of our sample is shown in the top left corner of The schematic view of the measurement system is shown in Fig.…”

mentioning

confidence: 99%

Compact tunable sub-terahertz oscillators based on Josephson junctions

Müller¹,

Scheller²,

Semenov³

et al. 2011

Applied Physics Letters

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Essential applications of terahertz technology are urgently in need of compact, tunable solid-state continuous wave radiation sources. However, no satisfactory solution is yet available for the frequency range of up to approximately 1.0 THz. Here, we present coherent radiation from large series arrays of Josephson junctions between 0.1 and 0.25 THz with off-chip radiation power of 7 μW. Niobium junctions oscillate at 4.2 K and the detection has been done at room temperature. The well-known obstacle to impedance matching is overcome by utilizing the excited resonances in the junction substrates serving as dielectric resonator antennae.

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mentioning

confidence: 99%

Compact tunable sub-terahertz oscillators based on Josephson junctions

Müller¹,

Scheller²,

Semenov³

et al. 2011

Applied Physics Letters

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“…The availability of Josephson arrays capable of producing peak voltages in the region of 10 V [6] extends the range of impedances that can be compared in a Josephson impedance bridge. At the conference, results using 10 pF capacitance standards will be presented.…”

Section: Application and Future Directionsmentioning

confidence: 99%

Josephson impedance bridges as universal impedance comparators

Palafox

Behr

Nissilä

et al. 2012

2012 Conference on Precision Electromagnetic Measurements

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Josephson impedance bridges have been reported to provide uncertainties close to that from the best conventional bridges when comparing two 10-kΩ resistors. The accuracy of a few parts in 10 8 has been extended to the comparison of two 100-pF capacitance standards, significantly improving the uncertainty for these measurements at power line frequencies.Preliminary measurements of Josephson quadrature bridges are also presented with uncertainties at the level of 1.6 × 10 -6 (k = 1).

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“…The fabrication process, requiring that the two barriers and the three thin aluminum layers been highly homogenous, has set a limitation to the fabrication of really high number of junctions, as in arrays for programmable voltages at 10 V and more [35].…”

Section: Programmable Voltage Standardsmentioning

confidence: 99%