Towards large scale HTS Josephson detector arrays for THz imaging

We present the design and implementation of a high-temperature superconducting (HTS) Josephson junction detector array for terahertz (THz) imaging. The array device is made of ten YBa2Cu3Ox−7 (YBCO) step-edge junctions coupled to gold thin-film ring-slot antennas on a MgO substrate. The design and c...

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Veröffentlicht in:	Superconductor science & technology 2013-11, Vol.26 (11), p.115012-7
Hauptverfasser:	Du, J, Hellicar, A D, Leslie, K E, Nikolic, N, Hanham, S M, Macfarlane, J C, Foley, C P
Format:	Artikel
Sprache:	eng
Schlagworte:	AGING MECHANISMS ANTENNAS Arrays Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER OXIDE Cuprates superconductors (high tc and insulating parent compounds) Design engineering ELECTRONIC PRODUCTS Electronics Exact sciences and technology Imaging MAGNESIUM OXIDE Physics Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions SUPERCONDUCTIVITY SUPERCONDUCTORS Systems integration THIN FILMS Y-based cuprates YBCO superconductors YTTRIUM OXIDE
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Zusammenfassung:	We present the design and implementation of a high-temperature superconducting (HTS) Josephson junction detector array for terahertz (THz) imaging. The array device is made of ten YBa2Cu3Ox−7 (YBCO) step-edge junctions coupled to gold thin-film ring-slot antennas on a MgO substrate. The design and characterization of the detector array in response to a 0.6 THz signal are presented. The development of multi-channel biasing and read-out electronics and the system integration with a commercial cryocooler are also described.
ISSN:	0953-2048 1361-6668
DOI:	10.1088/0953-2048/26/11/115012