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, 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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