AC JOSEPHSON EFFECT IN SUPERCONDUCTING NIOBIUM NITRIDE TUNNEL-JUNCTIONS AT UP TO 2.5 THZ

被引：3

作者：

WICKS, MC ^{[1
]}

HAYCOCKS, PR ^{[1
]}

HORI, T ^{[1
]}

机构：

[1] COMMUN RES LABS,TOKYO,JAPAN

来源：

ELECTRONICS LETTERS | 1990年 / 26卷 / 09期

关键词：

Measurement; Mixers; Superconducting devices;

D O I：

10.1049/el:19900401

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Shapiro steps have been observed in the I-V characteristics of an NbN tunnel junction illuminated with radiation from an optically pumped far infrared laser. The maximum operating frequency which produced an observable Shapiro step was 2.53 THz. This is a four-fold increase over that previously reported for a thin film Josephson junction. Clear steps were also produced by various laser lines in the frequency range 0.6-1.8 THz. © 1990, The Institution of Electrical Engineers. All rights reserved.

引用

页码：610 / 612

页数：3

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