1 October 1991 High speed nonlinear detection of short pulses of mid and far infrared radiation with a current biased granular thin film of Bi2Sr2CaCu2O8
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Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 157619 (1991) https://doi.org/10.1117/12.2297758
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland
Abstract
The work introduced below has extended previous reports of far infrared (FIR: 10 cm-1 < ω < 100 cm-1) responses from granular Y-Ba-Cu-O [1] and Tl-Ba-Sr-Cu-O [2] films to the Bi2Sr2CaCu2O8 system for the first time. More importantly, the photosignal was found to depend on √Power over a two orders of magnitude range of incident powers. The detection mechanism is therefore believed to arise from the interaction of current biased intergranular Josephson junctions with radiation induced screening currents. A non bolometric response is also observed at low temperatures at a mid infrared frequency of 903 cm-1.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. G. Huggard, "High speed nonlinear detection of short pulses of mid and far infrared radiation with a current biased granular thin film of Bi2Sr2CaCu2O8", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 157619 (1 October 1991); doi: 10.1117/12.2297758; https://doi.org/10.1117/12.2297758
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