Feasibility of infrared imaging arrays using high- T sub c superconducting bolometers

Journal Article · Sun Mar 15 00:00:00 EST 1992 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.351063· OSTI ID:7205722

Verghese, S; Richards, P L ^[1]; Char, K ^[2]; Fork, D K ^[3]; Geballe, T H ^[4]

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1. Department of Physics, University of California and Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
2. Conductus Inc., Sunnyvale, California 94086 (United States)
3. Xerox Palo Alto Research Center, Palo Alto, California 94304 (United States) Department of Applied Physics, Stanford University, Stanford, California 94305 (United States)
4. Department of Applied Physics, Stanford University, Stanford, California 94305 (United States)

The design of high-{ital T}{sub {ital c}} superconducting bolometers for applications such as infrared imaging arrays is discussed. The dependence of bolometer sensitivity on excess voltage noise in the thermometer is a function of the detector area and thus of the wavelength to be detected. Measurements of the voltage noise in thin films of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} on Si, Si{sub 3}N{sub 4}, and sapphire substrates are used to predict the performance of different bolometer architectures. Useful opportunities exist for bolometers made on both Si and Si{sub 3}N{sub 4} membranes. A readout scheme for two-dimensional arrays of bolometers is also described in which real-time signal integration is performed on the chip.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7205722
• Journal Information: Journal of Applied Physics; (United States), Vol. 71:6; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTING DEVICES
BOLOMETERS
BARIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
IMAGES
INFRARED RADIATION
SUPERCONDUCTING FILMS
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTROMAGNETIC RADIATION
FILMS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
665412* - Superconducting Devices- (1992-)