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Josephson mixers for terahertz detection

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arxiv 1405.5998 v1 pith:FGD7HM6Z submitted 2014-05-23 cond-mat.supr-con

Josephson mixers for terahertz detection

Maxime Malnou , Cheryl Feuillet-Palma , Christian Ulysse , Giancarlo Faini , Pascal Febvre , Martin Sirena , Ludovic Olanier , Jerome Lesueur
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Nicolas Bergeal
This is my paper
classification cond-mat.supr-con
keywords experimentalfrequencyjosephsonjunctionjunctionsmixersmodeltheoretical
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We report on an experimental and theoretical study of the high-frequency mixing properties of ion-irradiated YBa2Cu3O7 Josephson junctions embedded in THz antennas. We investigated the influence of the local oscillator power and frequency on the device performances. The experimental data are compared with theoretical predictions of the general three-port model for mixers, in which the junction is described by the resistively shunted junction model. A good agreement is obtained for the conversion efficiency in different frequency ranges, spanning above and below the characteristic frequencies fc of the junctions.

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