AC bias characterization of low noise bolometers for SAFARI using an open-loop frequency domain SQUID-based multiplexer operating between 1 and 5 MHz

Gottardi, L.; Bruijn, M.; Gao, J.R.; Den Hartog, R.; Hijmering, R.; Hoevers, H.; Khosropanah, P.; De Korte, P.; Van der Kuur, J.; Lindeman, M.; Ridder, M.

doi:doi:10.1007/s10909-012-0559-x

AC bias characterization of low noise bolometers for SAFARI using an open-loop frequency domain SQUID-based multiplexer operating between 1 and 5 MHz

Title

AC bias characterization of low noise bolometers for SAFARI using an open-loop frequency domain SQUID-based multiplexer operating between 1 and 5 MHz

Author

Gottardi, L.
Bruijn, M.
Gao, J.R.
Den Hartog, R.
Hijmering, R.
Hoevers, H.
Khosropanah, P.
De Korte, P.
Van der Kuur, J.
Lindeman, M.
Ridder, M.

Faculty

Applied Sciences

Department

Kavli Institute of Nanoscience

Date

2012-02-01

Abstract

SRON is developing the Frequency Domain Multiplexing (FDM) read-out and the ultra low NEP TES bolometers array for the infra-red spectrometer SAFARI on board of the Japanese space mission SPICA. The FDM prototype of the instrument requires critical and complex optimizations. For single pixel characterization under AC bias we are developing a simple FDM system working in the frequency range from 1 to 5 MHz, based on the open loop read-out of a linearized two-stage SQUID amplifier and high Q lithographic LC resonators. We describe the details of the experimental set-up required to achieve low power loading (<1 fW) and low noise (NEP ? 10?19 W/? Hz) in the TES bolometers. We conclude the paper by comparing the performance of a 4×10?19 W/? Hz TES bolometer measured under DC and AC bias.

Subject

FDM · Infra-red detector · SQUID · Bolometer · TES · LC resonator

To reference this document use:

http://resolver.tudelft.nl/uuid:11c3aa8e-c80c-417f-b0e2-b6579bfe897d

DOI

https://doi.org/10.1007/s10909-012-0559-x

Publisher

Springer

ISSN

0022-2291

Source

http://www.springerlink.com/content/x8172804351804v7/