Multiplexed readout of superconductor-normal-conductor-superconductor bolometers

Thumbnail Image

Files

Multiplexed_readout_of_superconductor_normal-conductor_superconductor_bolometers.pdf (2.96 MB)

Access rights

openAccess
CC BY-NC
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)
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

2025-07-14

Department

Department of Applied Physics

Major/Subject

Mcode

Degree programme

Language

en

Pages

8

Series

Journal of Applied Physics, Volume 138, issue 2, pp. 1-8

Abstract

Recently, ultrasensitive calorimeters have emerged as a resource efficient solution for different applications, such as qubit readout, radiation sensors, etc. Multiplexing these detectors paves the path for a larger range of usage. However, experiments demonstrating frequency multiplexing of these superconductor-normal-conductor-superconductor (SNS) sensors are lacking in the literature. To this end, we present the design, fabrication, and operation of three SNS sensors with frequency-multiplexed input and probe circuits, all on a single chip. These devices have their probe frequencies in the range of 150-200 MHz, which is well detuned from the heater frequencies of 4.4-7.6 GHz compatible with typical readout frequencies used in different applications in microwave physics. Importantly, we show on-demand triggering of both individual and multiple low-noise SNS bolometers with minimal cross talk. These experiments pave the way for multiplexed bolometric characterization and calorimetric applications.

Description

| openaire: EC/H2020/101053801/EU//ConceptQ | openaire: EC/HE/101113946/EU//OpenSuperQPlus100

Keywords

Other note

DOI

10.1063/5.0280536

Citation

Singh, P, Gunyhó, A, Suominen, H, Catto, G, Blanchet, F, Chen, Q M, Alizadeh, A, Keränen, A, Ma, J, Mörstedt, T, Liu, W & Möttönen, M 2025, 'Multiplexed readout of superconductor-normal-conductor-superconductor bolometers', Journal of Applied Physics, vol. 138, no. 2, 024401, pp. 1-8. https://doi.org/10.1063/5.0280536

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202508045700

Collections

[article-cris] Perustieteiden korkeakoulu / SCI