Voltage-biased high-{Tc} superconducting infrared bolometers with strong electrothermal feedback [electronic resource]
In the current generation of high-{Tc} bolometers the thermal conductance is often chosen for a short time-constant rather than for optimal sensitivity. We describe a novel bolometer bias and readout scheme that promises to relax this constraint. Voltage bias of the superconductor results in strong...
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Online Access |
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Corporate Author: | |
Format: | Government Document Electronic eBook |
Language: | English |
Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1996.
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Subjects: |
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245 | 0 | 0 | |a Voltage-biased high-{Tc} superconducting infrared bolometers with strong electrothermal feedback |h [electronic resource] |
260 | |a Washington, D.C. : |b United States. Dept. of Energy. Office of Energy Research ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 1996. | ||
300 | |a 10 p. | ||
336 | |a text |b txt |2 rdacontent. | ||
337 | |a computer |b c |2 rdamedia. | ||
338 | |a online resource |b cr |2 rdacarrier. | ||
500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
500 | |a 08/01/1996. | ||
500 | |a "LBNL--39320" | ||
500 | |a "CONF-960850--19" | ||
500 | |a "DE97001223" | ||
500 | |a Applied superconductivity conference, Pittsburgh, PA (United States), 25-30 Aug 1996. | ||
500 | |a Richards, P.L.; Lee, A.T.; Gildemeister, J.M.; Lee, Shih-Fu. | ||
520 | 3 | |a In the current generation of high-{Tc} bolometers the thermal conductance is often chosen for a short time-constant rather than for optimal sensitivity. We describe a novel bolometer bias and readout scheme that promises to relax this constraint. Voltage bias of the superconductor results in strong negative electrothermal feedback that greatly reduces the time-constant of the bolometer. We estimate that a decrease of more than one order of magnitude in time-constant should be possible with existing high-Tc thermometers. We give theoretical estimates of the performance gain with voltage bias for several bolometers that have been reported in the literature. We find cases where the sensitivity can be greatly improved (by changing the thermal conductance) while holding the time constant fixed and others where the bolometer can be made much faster while maintaining the sensitivity. | |
536 | |b AC03-76SF00098. | ||
650 | 7 | |a Bolometers. |2 local. | |
650 | 7 | |a Sensitivity. |2 local. | |
650 | 7 | |a Superconducting Devices. |2 local. | |
650 | 7 | |a Performance. |2 local. | |
650 | 7 | |a Feedback. |2 local. | |
650 | 7 | |a Thermal Conduction. |2 local. | |
650 | 7 | |a Time Resolution. |2 local. | |
650 | 7 | |a High-tc Superconductors. |2 local. | |
650 | 7 | |a Squid Devices. |2 local. | |
650 | 7 | |a Electrical Engineering. |2 local. | |
650 | 7 | |a Instrumentation, Including Nuclear And Particle Detectors;42 Engineering Not Included In Other Categories. |2 edbsc. | |
710 | 2 | |a Lawrence Berkeley National Laboratory. |4 res. | |
710 | 1 | |a United States. |b Department of Energy. |b Office of Energy Research. |4 spn. | |
710 | 2 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
856 | 4 | 0 | |u http://www.osti.gov/servlets/purl/415209-56aHRE/webviewable/ |z Online Access |
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952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:CONF-960850--19 |h Superintendent of Documents classification |i web |n 1 |