A flux-driven Josephson parametric amplifier for sub-GHz frequencies fabricated with side-wall passivated spacer junction technology

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A flux-driven Josephson parametric amplifier for sub-GHz frequencies fabricated with side-wall passivated spacer junction technology. / Simbierowicz, Slawomir; Vesterinen, Visa; Grönberg, Leif; Lehtinen, Janne; Prunnila, Mika; Hassel, Juha.

julkaisussa: Superconductor Science and Technology, Vuosikerta 31, Nro 10, 105001, 24.08.2018, s. 1-7.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Simbierowicz, Slawomir ; Vesterinen, Visa ; Grönberg, Leif ; Lehtinen, Janne ; Prunnila, Mika ; Hassel, Juha. / A flux-driven Josephson parametric amplifier for sub-GHz frequencies fabricated with side-wall passivated spacer junction technology. Julkaisussa: Superconductor Science and Technology. 2018 ; Vuosikerta 31, Nro 10. Sivut 1-7.

Bibtex - Lataa

@article{1600fdf8a8954a958f0bdff2bc4230e2,
title = "A flux-driven Josephson parametric amplifier for sub-GHz frequencies fabricated with side-wall passivated spacer junction technology",
abstract = "We present experimental results for a Josephson parametric amplifier tailored for readout of ultra-sensitive thermal microwave detectors. In particular, we discuss the impact of fabrication details on the performance. We show that the small volume of deposited dielectric materials enabled by the side-wall passivated spacer niobium junction technology leads to robust operation across a wide range of operating temperatures up to 1.5 K. The flux-pumped amplifier has gain in excess of 20 dB in three-wave mixing and its center frequency is tunable between 540-640 MHz. At 600 MHz, the amplifier adds 105 mK 9 mK of noise, as determined with the hot/cold source method. Phase-sensitive amplification is demonstrated with the device.",
keywords = "Josephson junction, parametric amplifier, SQUID array",
author = "Slawomir Simbierowicz and Visa Vesterinen and Leif Gr{\"o}nberg and Janne Lehtinen and Mika Prunnila and Juha Hassel",
year = "2018",
month = "8",
day = "24",
doi = "10.1088/1361-6668/aad4f2",
language = "English",
volume = "31",
pages = "1--7",
journal = "Superconductor Science and Technology",
issn = "0953-2048",
publisher = "IOP Publishing Ltd.",
number = "10",

}

RIS - Lataa

TY - JOUR

T1 - A flux-driven Josephson parametric amplifier for sub-GHz frequencies fabricated with side-wall passivated spacer junction technology

AU - Simbierowicz, Slawomir

AU - Vesterinen, Visa

AU - Grönberg, Leif

AU - Lehtinen, Janne

AU - Prunnila, Mika

AU - Hassel, Juha

PY - 2018/8/24

Y1 - 2018/8/24

N2 - We present experimental results for a Josephson parametric amplifier tailored for readout of ultra-sensitive thermal microwave detectors. In particular, we discuss the impact of fabrication details on the performance. We show that the small volume of deposited dielectric materials enabled by the side-wall passivated spacer niobium junction technology leads to robust operation across a wide range of operating temperatures up to 1.5 K. The flux-pumped amplifier has gain in excess of 20 dB in three-wave mixing and its center frequency is tunable between 540-640 MHz. At 600 MHz, the amplifier adds 105 mK 9 mK of noise, as determined with the hot/cold source method. Phase-sensitive amplification is demonstrated with the device.

AB - We present experimental results for a Josephson parametric amplifier tailored for readout of ultra-sensitive thermal microwave detectors. In particular, we discuss the impact of fabrication details on the performance. We show that the small volume of deposited dielectric materials enabled by the side-wall passivated spacer niobium junction technology leads to robust operation across a wide range of operating temperatures up to 1.5 K. The flux-pumped amplifier has gain in excess of 20 dB in three-wave mixing and its center frequency is tunable between 540-640 MHz. At 600 MHz, the amplifier adds 105 mK 9 mK of noise, as determined with the hot/cold source method. Phase-sensitive amplification is demonstrated with the device.

KW - Josephson junction

KW - parametric amplifier

KW - SQUID array

UR - http://www.scopus.com/inward/record.url?scp=85053405289&partnerID=8YFLogxK

U2 - 10.1088/1361-6668/aad4f2

DO - 10.1088/1361-6668/aad4f2

M3 - Article

AN - SCOPUS:85053405289

VL - 31

SP - 1

EP - 7

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 10

M1 - 105001

ER -

ID: 28341883