A tunable sub-terahertz wave generation and detection system with a photomixer and a high-Tc Josephson junction

被引：6

作者：

Kawayama, Iwao

Miyadera, Tatsuya

Murakami, Hironaru

Tonouchi, Masayoshi

机构：

[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[2] Japan Sci & Technol Agcy JST, CREST, Tokyo 1500011, Japan

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2006年 / 19卷 / 05期

关键词：

D O I：

10.1088/0953-2048/19/5/S50

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated a generation and detection system of tunable sub-terahertz electromagnetic waves using a photomixing technique combined with a high-T-c Josephson junction. The frequency of the electromagnetic wave generated using the photomixing technique was monitored by a YBCO Josephson junction detector, and was obtained from the voltage interval of the Shapiro steps that appear in the current-voltage characteristics of the junction. We succeeded in wideband operation in a frequency range from 58 to 161 GHz with a uni-travelling-carrier photodiode as a photomixer, and discuss the coupling efficiency between the radiation source and the Josephson detector. Such a technique should become the basic technology for THz applications, such as imaging systems and wireless communication.

引用

页码：S403 / S406

页数：4

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