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Proceedings Paper

Antenna-coupled transition-edge hot-electron microbolometers
Author(s): Shafinaz Ali; Peter T. Timbie; Siddharth Malu; Dan McCammon; Kari L. Nelms; Rashmi Pathak; Daniel W. van der Weide; Christine A. Allen; J. Abrahams; James A. Chervenak; Wen-Ting Hsieh; Timothy M. Miller; S. Harvey Moseley; Thomas R. Stevenson; Edward J. Wollack
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Paper Abstract

We are developing a new type of detector for observational cosmology and astrophysical research. Incoming radiation from the sky is coupled to a superconducting microstrip transmission line that terminates in a thin film absorber. At sub-Kelvin temperature, the thermal isolation between the electrons and the lattice makes it possible for the electrons in the small absorber (100's of cubic micro-meter) and superconducting bilayer (Transition Edge Sensor) to heat up by the radiation absorbed by the electrons of the normal absorbing layer. We call this detector a Transition-edge Hot-electron Micro-bolometer (THM). THMs can be fabricated by photo lithography, so it is relatively easy to make matched detectors for a large focal plane array telescope. We report on the thermal properties of Mo/Au THMs with Bi/Au absorbers.

Paper Details

Date Published: 8 October 2004
PDF: 9 pages
Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004); doi: 10.1117/12.552836
Show Author Affiliations
Shafinaz Ali, Univ. of Wisconsin/Madison (United States)
Peter T. Timbie, Univ. of Wisconsin/Madison (United States)
Siddharth Malu, Univ. of Wisconsin/Madison (United States)
Dan McCammon, Univ. of Wisconsin/Madison (United States)
Kari L. Nelms, Univ. of Wisconsin/Madison (United States)
Rashmi Pathak, Univ. of Wisconsin/Madison (United States)
Daniel W. van der Weide, Univ. of Wisconsin/Madison (United States)
Christine A. Allen, NASA Goddard Space Flight Ctr. (United States)
J. Abrahams, NASA Goddard Space Flight Ctr. (United States)
James A. Chervenak, NASA Goddard Space Flight Ctr. (United States)
Wen-Ting Hsieh, NASA Goddard Space Flight Ctr. (United States)
Timothy M. Miller, NASA Goddard Space Flight Ctr. (United States)
S. Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
Thomas R. Stevenson, NASA Goddard Space Flight Ctr. (United States)
Edward J. Wollack, NASA Goddard Space Flight Ctr. (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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