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Title: High-T{sub c} superconducting Josephson mixers for terahertz heterodyne detection

We report on an experimental and theoretical study of the high-frequency mixing properties of ion-irradiated YBa{sub 2}Cu{sub 3}O{sub 7} Josephson junctions embedded in THz antennas. We investigated the influence of the local oscillator power and frequency on the device performances. The experimental data are compared with theoretical predictions of the general three-port model for mixers in which the junction is described by the resistively shunted junction model. A good agreement is obtained for the conversion efficiency in different frequency ranges, spanning above and below the characteristic frequencies f{sub c} of the junctions.
Authors:
; ; ; ;  [1] ; ;  [2] ;  [3] ;  [4]
  1. Laboratoire de Physique et d'Etude des Matériaux—UMR8213-CNRS-ESPCI ParisTech-UPMC-PSL university, 10 Rue Vauquelin—75005 Paris (France)
  2. Laboratoire de Photonique et de Nanostructures LPN-CNRS, Route de Nozay, 91460 Marcoussis (France)
  3. IMEP-LAHC—UMR 5130 CNRS, Université de Savoie, 73376 Le Bourget du Lac cedex (France)
  4. Centro Atómico Bariloche, Instituto Balseiro—CNEA and Univ. Nac. de Cuyo, Av. Bustillo 9500, 8400 Bariloche, Rio Negro (Argentina)
Publication Date:
OSTI Identifier:
22314310
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTENNAS; BYPASSES; CUPRATES; DETECTION; EFFICIENCY; ELECTRIC CONTACTS; FREQUENCY MIXING; JOSEPHSON JUNCTIONS; OSCILLATORS