Harmonic mixing using a HTS step-edge Josephson junction at 0.6 THz frequency

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Du, Jia and Pegrum, Colin and Gao, Xiang and Weily, Andrew R. and Zhang, Ting and Guo, Yingjie Jay and Foley, Cathy P. (2017) Harmonic mixing using a HTS step-edge Josephson junction at 0.6 THz frequency. IEEE Transactions on Applied Superconductivity, 27 (4). ISSN 1051-8223 (https://doi.org/10.1109/TASC.2016.2636081)

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Abstract

A high-temperature superconducting (HTS) terahertz (THz) heterodyne mixer based on a thin-film antenna - coupled YBa2Cu3O7-x (YBCO) step-edge Josephson junction is presented. The frequency down-conversion from 0.6 THz to an intermediate frequency (IF) of 2 GHz was achieved using high-order harmonic mixing of a local oscillator (LO), thus removing the need to use a second THz source as the LO pumping source. The DC and RF characteristics of the harmonic mixer as well as the relationship of the IF output power versus the harmonic number were experimentally studied and compared with simulated results. Most of our measurements were made at 40K, but we also observed stable harmonic mixing at 77K which we believe has not been reported previously in HTS junction mixers.

  • Item type:Article
    ID code:58979
    Dates:
    Date
    Event
    30 June 2017
    Published
    6 December 2016
    Published Online
    28 November 2016
    Accepted
    Notes:© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:07 Dec 2016 10:03
    Last modified:21 Dec 2024 01:15
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/58979
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