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Antenna-coupled bolometer arrays using transition-edge sensors

Myers, Michael J., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Arnold, Kam, Engargiola, Greg, Holzapfel, Bill, Lee, Adrian T., O'Brient, Roger, Richards, Paul L., Smith, Andy, Spieler, Helmuth and Tran, Huan T. 2006. Antenna-coupled bolometer arrays using transition-edge sensors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559 (2) , pp. 531-533. 10.1016/j.nima.2005.12.061

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Abstract

We are developing antenna-coupled Transition-Edge Sensor (TES) bolometer arrays for use in measurements of the CMB polarization. TES bolometers have many well-known advantages over conventional bolometers, such as increased speed, linearity, and the existence of readout multiplexers. Antenna-coupled bolometers use an on-chip planar antenna to couple light into the bolometer. The antenna directivity and polarization sensitivity, along with the potential for on-chip band defining filters and channelizing circuits, allow a significant increase in focal plane integration. This eliminates the bulky horns, quasioptical filters, dichroics, and polarizers which might otherwise be needed in a conventional bolometric system. This simplification will ease the construction of receivers with larger numbers of pixels. We report on the fabrication and optical testing of single antenna-coupled bolometer pixels with integrated band defining filters. We will also discuss current progress on fabrication of a bolometer array based on this design.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Bolometer; Antenna-coupled; Microstrip filter
Additional Information: The article belongs to a Special Edition- Proceedings of the 11th International Workshop on Low Temperature Detectors — LTD-11
Publisher: Elsevier
ISSN: 0168-9002
Last Modified: 25 Oct 2022 09:57
URI: https://orca.cardiff.ac.uk/id/eprint/60628

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