NDLI: Terahertz Characterization of External Resonant Systems by High-<formula formulatype=inline><tex Notation=TeX>$T_{c}$</tex> </formula> Josephson Junctions

Content Provider	IEEE Xplore Digital Library
Author	Volkov, O.Y. Divin, Y.Y. Gubankov, V.N. Gundareva, I.I. Pavlovskiy, V.V.
Copyright Year	2002
Abstract	High-Tc Josephson technology looks promising for THz applications. One of the remaining problems, important both for detection and emission of THz radiation, is an optimum coupling of high-Tc junctions with environment. Recently, we have demonstrated a possibility to characterize electromagnetic systems integrated with high-Tc junctions using dc I-V curves of these junctions. Here, we report in details on modification of the dc I-V curves of YBa₂Cu₃O_7-x bicrystal junctions, related to interaction of Josephson oscillations with terahertz resonance antennas. Thin-film log-periodic antennas with various resonance structures were fabricated on the same substrate as Josephson junctions and were excited by Josephson oscillations. Frequency-dependent admittances of the antennas were derived from fine log-periodic structures on the dc I-V curves of the junctions and compared with the results of numerical simulations. Data obtained can be used for optimization of coupling between the junctions and antennas.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	306
Ending Page	310
Page Count	5
File Size	508786
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antennas Resonant frequency Junctions Josephson junctions Admittance Teeth THz spectroscopy Josephson devices microwave circuits superconducting microwave devices THz
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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