NDLI: Focal plane arrays of voltage-biased superconducting bolometers

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Focal plane arrays of voltage-biased superconducting bolometers

Content Provider	NASA Technical Reports Server (NTRS)
Author	Schwan, Dan Clarke, John Yoon, Jongsoo Richards, P. L. Skidmore, J. T. Spieler, Helmuth Gildemeister, J. M. Lee, Adrian T. Myers, Michael J.
Copyright Year	2001
Description	The 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.
File Size	341390
Page Count	5
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20020038974
Archival Resource Key	ark:/13960/t8qc4zv51
Language	English
Publisher Date	2001-12-01
Access Restriction	Open
Subject Keyword	Electronics And Electrical Engineering Multiplexing Bolometers Squid Detectors Cryogenic Equipment Antenna Design Focal Plane Devices Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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