Weak-Link Phenomena in AC-Biased Transition Edge Sensors

Luciano Gottardi; Hiroki Akamatsu; Marcel Bruijn; Jan-R. Gao; Roland den Hartog; Richard Hijmering; Henk Hoevers; Pourya Khosropanah; Alex Kozorezov; Jan van der Kuur; Anton van der Linden; Marcel Ridder

doi:10.1007/s10909-014-1093-9

Weak-Link Phenomena in AC-Biased Transition Edge Sensors

Superconductivity 2016-04-05 v1 Instrumentation and Methods for Astrophysics Instrumentation and Detectors

Authors: Luciano Gottardi , Hiroki Akamatsu , Marcel Bruijn , Jan-R. Gao , Roland den Hartog , Richard Hijmering , Henk Hoevers , Pourya Khosropanah , Alex Kozorezov , Jan van der Kuur , Anton van der Linden , Marcel Ridder

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Abstract

It has been recently demonstrated that superconducting transition edge sensors (TESs) behave as weak-links due to longitudinally induced superconductivity from the leads with higher Tc. In this work we study the implication of this behaviour for TES-based bolometers and microcalorimeter under ac bias. The TESs are read-out at frequencies between 1 and 5 MHz by a Frequency Domain Multiplexer based on a linearised two-stage SQUID amplifier and high- Q lithographically made superconducting LC resonators. In particular, we focus on SRON TiAu TES bolometers with a measured dark Noise Equivalent Power (NEP) of $3.2 \cdot 10^{-19} W/Hz^{1/2}$ developed for the short wavelength band for the instrument SAFARI on the SPICA telescope.

Keywords

superconducting quantum interference devices superconductivity field-effect transistors

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@article{arxiv.1604.00680,
  title  = {Weak-Link Phenomena in AC-Biased Transition Edge Sensors},
  author = {Luciano Gottardi and Hiroki Akamatsu and Marcel Bruijn and Jan-R. Gao and Roland den Hartog and Richard Hijmering and Henk Hoevers and Pourya Khosropanah and Alex Kozorezov and Jan van der Kuur and Anton van der Linden and Marcel Ridder},
  journal= {arXiv preprint arXiv:1604.00680},
  year   = {2016}
}

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6 pages, 5 figure

Weak-Link Phenomena in AC-Biased Transition Edge Sensors

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