Impact of Antenna Design on the Electric-Field Direction Sensitivity of Zero-Biased Y-Ba-Cu-O Detectors to Ultra-Short THz Pulses

Detectors made from sub-micron-sized bridges of the high-T c superconductor Y-Ba-Cu-O have unique properties useful for the detection of THz radiation, namely evidence of a detector response with an additional sensitivity to the direction of the electric field of short THz pulses when used without a...

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Bibliographic Details
Published inIEEE transactions on applied superconductivity Vol. 29; no. 5; pp. 1 - 5
Main Authors Schmid, Alexander, Kuzmin, Artem, Steinmann, Johannes L., Raasch, Juliane, Wuensch, Stefan, Ilin, Konstantin, Muller, Anke-Susanne, Siegel, Michael
Format Journal Article
LanguageEnglish
Published IEEE 01.08.2019
Subjects
Antenna theory
Bridges
Broadband antennas
Broadband communication
Detectors
Focusing
high-temperature superconductors
superconducting thin films
Yttrium barium copper oxide
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Summary:Detectors made from sub-micron-sized bridges of the high-T c superconductor Y-Ba-Cu-O have unique properties useful for the detection of THz radiation, namely evidence of a detector response with an additional sensitivity to the direction of the electric field of short THz pulses when used without a transport current in the so-called "zero-bias" regime. In order to examine the influence of the antenna design on the detector response, we have conducted electromagnetic simulations and performed experiments at a synchrotron light source and with a photomixing setup as sources for short THz pulses. In this paper, we evaluate a narrow-band double-slot antenna as well as a broadband log-spiral antenna design.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2019.2900576