Broadband lumped-element Josephson parametric amplifier with single-step lithography
| Autor: | Pertti Hakonen, E. V. Korostylev, I. Lilja, M. R. Perelshtein, Teemu Elo, T. S. Abhilash |
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| Přispěvatelé: | Centre of Excellence in Quantum Technology, QTF, Department of Applied Physics, Moscow Institute of Physics and Technology, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Physics Josephson effect Fabrication ta114 Physics and Astronomy (miscellaneous) Condensed Matter - Mesoscale and Nanoscale Physics business.industry Bandwidth (signal processing) Physics::Optics FOS: Physical sciences Single step 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 7. Clean energy 0103 physical sciences Broadband Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Optoelectronics Parametric oscillator Center frequency 0210 nano-technology business Lithography |
| Zdroj: | Elo, T, Thanniyil Sebastian, A, Perelshtein, M R, Lilja, I, Korostylev, E V & Hakonen, P J 2019, ' Broadband lumped-element Josephson parametric amplifier with single-step lithography ', Applied Physics Letters, vol. 114, no. 15, 152601 . https://doi.org/10.1063/1.5086091 Applied Physics Letters |
| DOI: | 10.1063/1.5086091 |
| Popis: | We present a lumped-element Josephson parametric amplifier (JPA) utilizing a straightforward fabrication process involving a single electron beam lithography step followed by double-angle evaporation of aluminum and in-situ oxidation. The Josephson junctions forming the SQUID are fabricated using bridgeless shadow evaporation technique, which enables reliable fabrication of relatively large ($\sim9~\mathrm{\mu m^2}$) junctions. Our strongly coupled flux-pumped JPA achieves 20~dB gain with 95~MHz bandwidth 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. Comment: pages 11, 5 figures |
| Databáze: | OpenAIRE |
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