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Author Li, C. ♦ Deaver, B. S. (Jr.) ♦ Lee, M. ♦ Weikle, R. M. II ♦ Rao, R. A. ♦ Eom, C. B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ PHYSICS ♦ SUPERCONDUCTING DEVICES ♦ BOLOMETERS ♦ YTTRIUM COMPOUNDS ♦ BARIUM COMPOUNDS ♦ HIGH-TC SUPERCONDUCTORS ♦ YTTRIUM OXIDES ♦ BARIUM OXIDES ♦ COPPER OXIDES ♦ HETERODYNE RECEIVERS ♦ MIXERS
Abstract Low power characteristics of superconducting hot-electron bolometric mixers using YBa{sub 2}Cu{sub 3}O{sub 7} are reported. Near 77 K, these mixers have a responsivity of 780 V/W using 8 nW of local oscillator (LO) power at 585 GHz. The responsivity can be shown to be truly bolometric. Heterodyne mixing at 87 GHz shows an overall conversion gain of {minus}47dB at 1.8 GHz intermediate frequency, using 3.3 mW of incident LO power. The intrinsic conversion gain is estimated to be {minus}16dB with 1 {mu}W of LO power, close to the calculated optimal values. {copyright} {ital 1997 American Institute of Physics.}
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 1997-09-01
Publisher Place United States
Journal Applied Physics Letters
Volume Number 71
Issue Number 11


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