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Proceedings Paper

Performance of microstrip-coupled TES bolometers with finline transitions
Author(s): Michael D. Audley; Dorota Glowacka; David J. Goldie; Vassilka Tsaneva; Stafford Withington; Paul K. Grimes; Chris E. North; Ghassan Yassin; Lucio Piccirillo; Peter Ade; Rashmi V. Sudiwala
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Paper Abstract

We have fabricated TES bolometers with finline transitions for the CℓOVER project. We have measured the optical response of CℓOVER's first prototype 97-GHz detectors and find that they have a detection efficiency close to 100%. We have also investigated the effects of misalignment of the finline in the waveguide and of thinning the substrate. The prototype detectors have dark NEPs as low as 1.5 x 10-17W/√Hz and satisfy the requirement of photon-noise limited operation on CℓOVER. We describe the optical tests of CℓOVER's prototype 97-GHz detectors and discuss their implications for the design of the science-grade detectors.

Paper Details

Date Published: 18 July 2008
PDF: 12 pages
Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70200M (18 July 2008); doi: 10.1117/12.789076
Show Author Affiliations
Michael D. Audley, Cavendish Lab., Univ. of Cambridge (United Kingdom)
Dorota Glowacka, Cavendish Lab., Univ. of Cambridge (United Kingdom)
David J. Goldie, Cavendish Lab., Univ. of Cambridge (United Kingdom)
Vassilka Tsaneva, Cavendish Lab., Univ. of Cambridge (United Kingdom)
Stafford Withington, Cavendish Lab., Univ. of Cambridge (United Kingdom)
Paul K. Grimes, Univ. of Oxford (United Kingdom)
Chris E. North, Univ. of Oxford (United Kingdom)
Ghassan Yassin, Univ. of Oxford (United Kingdom)
Lucio Piccirillo, Cardiff Univ. (United Kingdom)
Peter Ade, The Univ. of Manchester (United Kingdom)
Rashmi V. Sudiwala, The Univ. of Manchester (United Kingdom)


Published in SPIE Proceedings Vol. 7020:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV
William D. Duncan; Wayne S. Holland; Stafford Withington; Jonas Zmuidzinas, Editor(s)

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