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Proceedings Paper

Design techniques for improved noise performance of superconducting transition edge sensor bolometers
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Paper Abstract

We have investigated the noise performance of MoAu-bilayer TES bolometers designed for infrared detectors. A set of devices with variations in geometry were fabricated at the NASA/GSFC detector development facility. These detectors have different bilayer aspect ratios and have varieties of normal metal regions deposited on top of the bilayer to study the effects of geometry on noise. These normal metal regions are oriented either parallel or transverse to the direction of current flow, or both. The lowest noise detectors are found to have normal metal regions oriented transversely. Our detectors with the most favorable design feature negligible excess noise in the in-band region, only slight excess noise in the out-of-band region, and low 1/f noise. The detectors are successfully used in the Submillimeter Broadband Spectrometer FIBRE which is used for astronomical observations at the Caltech Submillimeter Observatory.

Paper Details

Date Published: 8 October 2004
PDF: 6 pages
Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004); doi: 10.1117/12.552102
Show Author Affiliations
Johannes G. Staguhn, NASA Goddard Space Flight Ctr. (United States)
SSAI (United States)
Dominic J. Benford, NASA Goddard Space Flight Ctr. (United States)
James A. Chervenak, NASA Goddard Space Flight Ctr. (United States)
S. Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
Christine A. Allen, NASA Goddard Space Flight Ctr. (United States)
Thomas R. Stevenson, NASA Goddard Space Flight Ctr. (United States)
Wen-Ting Hsieh, NASA Goddard Space Flight Ctr. (United States)
Raytheon ITSS (United States)


Published in SPIE Proceedings Vol. 5498:
Millimeter and Submillimeter Detectors for Astronomy II
Jonas Zmuidzinas; Wayne S. Holland; Stafford Withington, Editor(s)

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