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Antenna-coupled bolometer arrays using transition-edge sensors

Myers, Michael J., Ade, Peter A. R., 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: 04 Jun 2017 06:28
URI: http://orca.cf.ac.uk/id/eprint/60628

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