HUGGARD, PG and SCHNEIDER, G and OBRIEN, T and LEMOINE, P and BLAU, W and PRETTL, W (1991) FAST NONLINEAR PHOTORESPONSE OF CURRENT BIASED THIN-FILM BI2SR2CACU2O8 TO PULSED FAR-INFRARED RADIATION. APPLIED PHYSICS LETTERS, 58 (22). pp. 2549-2551. ISSN 0003-6951,
Full text not available from this repository.Abstract
The response of a polycrystalline thin-film Bi2Sr2CaCu2O8 superconducting stripe to short-pulse far-infrared (lambda = 447-mu-m) radiation is reported. Under constant current bias, a photosignal is generated when the maximum zero voltage current is exceeded. Measurements of the sensitivity as a function of temperature, bias current, and intensity reveal the signal source to be nonbolometric. The response is found to obey a (power) 1/2 law over more than 2 orders of magnitude. We believe the detection mechanism arises from the interaction of grain boundary Josephson junctions with radiation induced screening currents.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GRANULAR FILMS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54984 |
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