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Focal Plane Arrays of Voltage-Biased Superconducting BolometersThe 200-micrometer to 3-mm wavelength range has great astronomical and cosmological significance. Science goals include characterization of the cosmic microwave background, measurement of the Sunyaev-Zel'dovich effect in galaxy clusters, and observations of forming galaxies. Cryogenic bolometers are the most sensitive broadband detectors in this frequency range. Because single bolometer pixels are reaching the photon noise limit for many observations, the development of large arrays will be critical for future science progress. Voltage-biased superconducting bolometers (VSBs) have several advantages compared to other cryogenic bolometers. Their strong negative electrothermal feedback enhances their linearity, speed, and stability. The large noise margin of the SQUID readout enables multiplexed readout schemes, which are necessary for developing large arrays. In this paper, we discuss the development of a large absorber-coupled array, a frequency-domain SQUID readout multiplexer, and an antenna-coupled VSB design.
Document ID
20020038974
Document Type
Conference Paper
Authors
Myers, Michael J.
(California Univ. Berkeley, CA United States)
Clarke, John
(California Univ. Berkeley, CA United States)
Gildemeister, J. M.
(California Univ. Berkeley, CA United States)
Lee, Adrian T.
(California Univ. Berkeley, CA United States)
Richards, P. L.
(California Univ. Berkeley, CA United States)
Schwan, Dan
(California Univ. Berkeley, CA United States)
Skidmore, J. T.
(California Univ. Berkeley, CA United States)
Spieler, Helmuth
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA United States)
Yoon, Jongsoo
(California Univ. Berkeley, CA United States)
Date Acquired
August 20, 2013
Publication Date
December 1, 2001
Publication Information
Publication: Proceedings of the Twenlfth International Symposium on Space Terahertz Technology
Subject Category
Electronics And Electrical Engineering
Funding Number(s)
CONTRACT_GRANT: NAG2-1275
CONTRACT_GRANT: NSF AST-91-20005
CONTRACT_GRANT: DE-AC03-76SF-00098
CONTRACT_GRANT: NSF FD-97-31200
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20020038920Analytic PrimaryProceedings of the Twelfth International Symposium on Space Terahertz Technology
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