Parametric amplification on rf-induced steps in a Josephson tunnel junction

O.H. Sørensen; Niels Falsig Pedersen; Jesper Mygind; B. Dueholm

doi:10.1063/1.326184

Parametric amplification on rf-induced steps in a Josephson tunnel junction

O.H. Sørensen, Niels Falsig Pedersen, Jesper Mygind, B. Dueholm

Technical University of Denmark

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Abstract

Parametric effects including amplification in a singly degenerate mode have been observed in Josephson tunnel junctions at dc bias points on rf-induced steps. Net gain at 9 GHz was achieved with a bias on the fundamental 18-GHz step and subharmonic self-oscillations were seen on 18 and 70-GHz rf-induced steps even at voltages approaching the energy gap. A qualitative explanation of the results is presented. Journal of Applied Physics is copyrighted by The American Institute of Physics.

Original language	English
Journal	Journal of Applied Physics
Volume	50
Issue number	4
Pages (from-to)	2988-2990
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.326184
Publication status	Published - 1979

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Copyright (1979) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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http://link.aip.org/link/?JAPIAU/50/2988/1

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title = "Parametric amplification on rf-induced steps in a Josephson tunnel junction",

abstract = "Parametric effects including amplification in a singly degenerate mode have been observed in Josephson tunnel junctions at dc bias points on rf-induced steps. Net gain at 9 GHz was achieved with a bias on the fundamental 18-GHz step and subharmonic self-oscillations were seen on 18 and 70-GHz rf-induced steps even at voltages approaching the energy gap. A qualitative explanation of the results is presented. Journal of Applied Physics is copyrighted by The American Institute of Physics.",

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AU - Sørensen, O.H.

AU - Pedersen, Niels Falsig

AU - Mygind, Jesper

AU - Dueholm, B.

N1 - Copyright (1979) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 1979

Y1 - 1979

N2 - Parametric effects including amplification in a singly degenerate mode have been observed in Josephson tunnel junctions at dc bias points on rf-induced steps. Net gain at 9 GHz was achieved with a bias on the fundamental 18-GHz step and subharmonic self-oscillations were seen on 18 and 70-GHz rf-induced steps even at voltages approaching the energy gap. A qualitative explanation of the results is presented. Journal of Applied Physics is copyrighted by The American Institute of Physics.

AB - Parametric effects including amplification in a singly degenerate mode have been observed in Josephson tunnel junctions at dc bias points on rf-induced steps. Net gain at 9 GHz was achieved with a bias on the fundamental 18-GHz step and subharmonic self-oscillations were seen on 18 and 70-GHz rf-induced steps even at voltages approaching the energy gap. A qualitative explanation of the results is presented. Journal of Applied Physics is copyrighted by The American Institute of Physics.

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M3 - Journal article

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Parametric amplification on rf-induced steps in a Josephson tunnel junction

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