MICROWAVE DETECTION USING ANTIGRANULOCYTES BI-SR-CA-CU-O THIN-FILMS

被引:15
作者
BOONE, BG [1 ]
SOVA, RM [1 ]
MOORJANI, K [1 ]
GREEN, WJ [1 ]
GRABOW, BE [1 ]
机构
[1] JOHNS HOPKINS UNIV,DEPT ELECT & COMP ENGN,BALTIMORE,MD 21218
关键词
D O I
10.1063/1.348662
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report here results of our investigations of the nonbolometric mode of detection in granular Bi-Sr-Ca-Cu-O thin films. We find that both bolometric and nonbolometric modes appear in the same sample under mutually exclusive conditions: bolometric with light (633 nm) and nonbolometric with microwaves (9 GHz). Our measurements indicate that the nonbolometric mode of detection is more sensitive than the bolometric mode in our samples, a result which offers promise for application to microwave power measurement. Possible mechanisms for the nonbolometric mode are reviewed, and the concept of using a broadband spiral antenna directly coupled to the superconducting detector for microwave power sensing is briefly described.
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页码:2676 / 2678
页数:3
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