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Near-field induced FIR Josephson-detection by c-axis-oriented YBa_2Cu_3O_7-delta-films | | E. Zepezauer
; A. Kalbeck
; S. D. Ganichev
; W. Korzenietz
; W. Prettl
; | | Date: |
10 Sep 1999 | | Subject: | Superconductivity | cond-mat.supr-con | | Affiliation: | 1, 2), W. Korzenietz and W. Prettl (Institut fuer Experimentelle und Angewandte Physik, Universitaet Regensburg, Regensburg, Germany, A. F. Ioffe Physicotechnical Institute of the RAS, St. Petersburg, Russia | | Abstract: | A novel approach to intrinsic Josephson-detection of far infrared radiation is reported utilizing near-zone field effects at electric contacts on c-axis oriented YBa_2Cu_3O_7-delta films. While only a bolometric signal was observed focusing the radiation far off the contacts on c-axis normal films, irradiating the edge of contacts yielded an almost wavelength independent fast signal showing the characteristic intensity dependence of Josephson-detection. The signal is attributed to a c-axis parallel component of the electric radiation field being generated in the near-zone field of diffraction at the metallic contact structures. | | Source: | arXiv, cond-mat/9909151 | | Services: | Forum | Review | PDF | Favorites | |
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