Parametric excitation of plasma oscillations in Josephson Junctions

Niels Falsig Pedersen, Mogens Rugholm Samuelsen, Knud Særmark

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A theory is presented for parametric excitation of plasma oscillations in a Josephson junction biased in the zero voltage mode. A threshold curve for the onset of the parametric excitation is deduced via the stability properties of a Mathieu differential equation obtained by a self-consistent linearization procedure. The important parameters turn out to be the plasma frequency and the circuit losses. The results of the calculation are compared with the experiments performed on a Josephson junction analog and good agreement is obtained. It is suggested that the effect should be observable in tunnel junctions, but perhaps less likely in point contacts. ©1973 American Institute of Physics
Original languageEnglish
JournalJournal of Applied Physics
Issue number11
Pages (from-to)5120-5124
Publication statusPublished - 1973

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Copyright (1973) 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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