Antenna-coupled transition-edge hot-electron microbolometers

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 Jr.; Thomas R. Stevenson; Edward J. Wollack

doi:10.1117/12.552836

8 October 2004 Antenna-coupled transition-edge hot-electron microbolometers

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 Jr., Thomas R. Stevenson, Edward J. Wollack

Author Affiliations +

Proceedings Volume 5498, Millimeter and Submillimeter Detectors for Astronomy II; (2004) https://doi.org/10.1117/12.552836
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

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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 Jr., Thomas R. Stevenson, and Edward J. Wollack "Antenna-coupled transition-edge hot-electron microbolometers", Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004); https://doi.org/10.1117/12.552836

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