Construction and performance of a high-temperature-superconductor composite bolometer

Journal Article · Wed Nov 01 00:00:00 EST 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.343928· OSTI ID:5261162

Brasunas, J C; Moseley, S H ^[1]; Lakew, B ^[2]; Ono, R H; McDonald, D G; Beall, J A; Sauvageau, J E ^[3]

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1. NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (US)
2. STX Corporation, Lanham, Maryland 20706
3. National Institute of Standards and Technology, Boulder, Colorado 80303

A high-{ital T}{sub {ital c}} superconducting bolometer has been constructed using a YBa{sub 2}Cu{sub 3}O{sub {ital x}} thin-film meander line 20 {mu}m wide and 76 000 {mu}m long, deposited on a SrTiO{sub 3} substrate. Radiation is absorbed by a thin film of Bi with well-characterized absorption properties deposited on a Si substrate in contact with the SrTiO{sub 3}. At 1.8 Hz the measured bolometer response to a 500-K blackbody is 5.2 V/W (820 V/W extrapolated to dc), and the NEP is 5.7{times}10{sup {minus}8} W/(Hz){sup 1/2} . The impact of apparent nonohmic behavior at the transition is discussed, as are ways of reducing the observed 1/{ital f} noise. The response time is 32 s and is dominated by the heat capacity of the SrTiO{sub 3} substrate.

• OSTI ID: 5261162
• Journal Information: Journal of Applied Physics; (USA), Vol. 66:9; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOLOMETERS
FABRICATION
SUPERCONDUCTING DEVICES
BARIUM OXIDES
COPPER OXIDES
HIGH TEMPERATURE
HZ RANGE
NOISE
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TITANATES
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
FILMS
FREQUENCY RANGE
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
420201* - Engineering- Cryogenic Equipment & Devices