Frequency division multiplexing readout of 60 low-noise transition-edge sensor bolometers

Journal article (2021)

Authors

Q. Wang Rijksuniversiteit Groningen, SRON–Netherlands Institute for Space Research
Pourya Khosropanah SRON–Netherlands Institute for Space Research
J. Van Der Kuur SRON–Netherlands Institute for Space Research
G. de Lange SRON–Netherlands Institute for Space Research
Michael D. Audley SRON–Netherlands Institute for Space Research
Amin Aminaei SRON–Netherlands Institute for Space Research
M.L. Ridder SRON–Netherlands Institute for Space Research
A. J. Van Der Linden SRON–Netherlands Institute for Space Research
M. P. Bruijn SRON–Netherlands Institute for Space Research
J.R. Gao SRON–Netherlands Institute for Space Research, ImPhys/Optics - AS
Research Group
ImPhys/Optics (AS) (TU Delft)
Copyright: © 2021 Q. Wang, P. Khosropanah, J. Van Der Kuur, G. de Lange, M. D. Audley, A. Aminaei, M.L. Ridder, A. J. Van Der Linden, M. P. Bruijn, J.R. Gao
DOI: https://doi.org/10.1063/5.0065570
More Info
expand_more

Published Date

2021

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

We demonstrate multiplexing readout of 60 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing readout chain with bias frequencies ranging from 1 to 3.5 MHz and with a typical frequency spacing of 32 kHz. The readout chain starts with a two-stage SQUID amplifier and has a noise level of 9.5 pA/ Hz. We compare current-voltage curves and noise spectra of TESs measured in a single-pixel mode and in a multiplexing mode. We also map the noise equivalent power (NEP) and the saturation power of the bolometers in both modes, where there are 43 pixels that do not show more than 10% difference in NEP and 5% in saturation power when measured in single pixel and multiplex modes. We have read out a TES with an NEP of 0.45 aW/ Hz in the multiplexing-mode, which demonstrates the capability of reading out ultra-low noise TES bolometer arrays for space applications.

Files

APL21_AR_06500.pdf
(pdf | 0.742 Mb)
Unknown license
5.0065570.pdf
(pdf | 2.6 Mb)
Unknown license

Download not available