Submillimeter wave signal detection by bicrystal YBCO Josephson junctions at liquid nitrogen temperatures

被引:5
|
作者
Kislinskii, YV
Constantinian, KY
Borisenko, IV
Ovsyannikov, GA
Yagoubov, P
机构
[1] Russian Acad Sci, Inst Radio Engn & Elect, Moscow 10199, Russia
[2] SRON, NL-9747 AD Groningen, Netherlands
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 372卷
关键词
Josephson effect; high-T-c superconductor; submillimeter waves; detector;
D O I
10.1016/S0921-4534(02)00717-7
中图分类号
O59 [应用物理学];
学科分类号
摘要
The submillimeter wave signal detection has been experimentally studied for a high-T-c superconducting device, consisting of a bicrystal YBa2Cu3Ox, Josephson junction, incorporated with a log-periodic antenna. Measurements were carried out in wide range of temperatures T = 20-80 K. At relatively high temperatures T > 60 K, the thermally activated phase slippage began to predominate. At the same time, a set of clearly resolved detector response functions have been registered up to the temperatures close to the critical one. At the highest temperature T similar or equal to 80 K, where detector response has been registered, the ratio of the frequency of applied signal f similar or equal to 500 GHz to the critical frequency of Josephson junction f, has been estimated as large as f(s)/f(c) similar or equal to 40. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:436 / 439
页数:4
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