Broadband lumped-element Josephson parametric amplifier with single-step lithography

T. Elo*, T. S. Abhilash, M. R. Perelshtein, I. Lilja, E. V. Korostylev, P. J. Hakonen

*Corresponding author for this work

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We present a lumped-element Josephson parametric amplifier (JPA) fabricated using a straightforward e-beam lithography process. Our strongly coupled flux-pumped JPA achieves a gain of 20 dB with a bandwidth of 95 MHz around 5 GHz, while the center frequency is tunable by more than 1 GHz, with the additional possibility for rapid tuning by varying the pump frequency alone. Analytical calculations based on the input-output theory reproduce our measurement results closely.

Original languageEnglish
Article number152601
Pages (from-to)1-4
Number of pages4
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 15 Apr 2019
MoE publication typeA1 Journal article-refereed

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  • Projects

    EMP: European Microkelvin Platform

    Hakonen, P.


    Project: EU: Framework programmes funding

    Finnish Centre of Excellence in Quantum Technology

    Hakonen, P., Elo, T., Suresh, K. & Kumar, M.


    Project: Academy of Finland: Other research funding

    BOLOSO: Ultrasensitive bolometers for security applications

    Tomi, M., Hakonen, P., Suresh, K. & Korkalainen, T.


    Project: Academy of Finland: Other research funding



    Anna Rissanen (Manager)

    Aalto University

    Facility/equipment: Facility

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