Photoresponse of thin film high-Tc superconductors to far infrared laser radiation

Gi. Schneider

doi:10.1117/12.2297724

1 October 1991 Photoresponse of thin film high-T_c superconductors to far infrared laser radiation

Gi. Schneider

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 15760B (1991) https://doi.org/10.1117/12.2297724
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

The photoresponse of granular Bi₂Sr₂CaCu₂O₈ and of epitaxial YBa₂Cu₃O_7-δ thin films has been investigated at wavelengths between 10 μm and 944 μm. In addition to a bolometric signal we observe for the granular Bi-based films a nonbolometric response at temperatures T <80 K. The dependence of the signal on intensity, applied magnetic field and wavelength is consistent with an ac josephson effect occurring at the grain boundaries.

Citation Download Citation

Gi. Schneider "Photoresponse of thin film high-T_c superconductors to far infrared laser radiation", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15760B (1 October 1991); https://doi.org/10.1117/12.2297724

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