Low-noise microwave parametric amplifier based on self-heated nonlinear impedance with subnanosecond thermal response

Thumbnail Image

Files

Low-noise_microwave_parametric_amplifier_based_on_self-heated_nonlinear_impedance_with_subnanosecond_thermal_response.pdf (3.4 MB)

Access rights

openAccess
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2025-01

Department

Department of Applied Physics

Major/Subject

Mcode

Degree programme

Language

en

Pages

26

Series

Physical Review Applied, Volume 23, issue 1, pp. 1-26

Abstract

Low-noise amplifiers are of great significance in the field of quantum technologies. We study a thermally driven parametric amplifier based on a superconductor-insulator-graphene-insulator-superconductor (S-I-G-I-S) junction coupled to a superconducting microwave cavity. The strong nonlinearity in the temperature dependence of our device leads to thermal self-modulation that produces impedance oscillations at frequencies around twice the angular cavity resonance frequency ωr. In particular, reactance modulation of the effective capacitance yields a gain of 18.6 dB over a frequency span of 125 kHz with a minimum noise temperature of TN=1.4K. Our theoretical modeling gives insight into the exact mixing processes, confirmation of the electron-phonon coupling parameter and possible improvements of the studied system.

Description

| openaire: EC/H2020/670743/EU//QuDeT | openaire: EC/H2020/824109/EU//EMP | openaire: EC/H2020/722923/EU//OMT

Keywords

Other note

DOI

10.1103/PhysRevApplied.23.014037

Citation

Will, M, Haque, M T, Chaudhry, Y, Golubev, D & Hakonen, P 2025, ' Low-noise microwave parametric amplifier based on self-heated nonlinear impedance with subnanosecond thermal response ', Physical Review Applied, vol. 23, no. 1, 014037, pp. 1-26 . https://doi.org/10.1103/PhysRevApplied.23.014037

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202504303414

Collections

[article-cris] Perustieteiden korkeakoulu / SCI