基于超导检测器的太赫兹小型频谱检测仪

南京大学学报(自然科学版) ›› 2014, Vol. 50 ›› Issue (3): 262–.

基于超导检测器的太赫兹小型频谱检测仪

许伟伟*,郁梅,康琳,花涛,陈健,安德越

出版日期:2014-06-01 发布日期:2014-06-01
作者简介:南京大学电子科学与工程学院，南京，210093
基金资助:
国家“973”项目(2011CBA00107,2011CBA00202),国家自然科学基金(61371036,11234006,11227904),中国工程物理
研究院太赫兹重点实验室基金(CAEPTHZ201206)

A compact THz spectrum analyzer based on superconducting THz detector

Xu Weiwei, Yu Mei, An Deyue, Hua Tao, Jin Biaobing, Kang Lin, Chen Jian

Online:2014-06-01 Published:2014-06-01
About author:chool of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China

摘要/Abstract

摘要： 太赫兹（THz）波是有待进行全面研究开发的波段，在高灵敏的THz探测技术中，不仅要知道THz信号的功率，还要了解THz信号的频率和频谱，研制一种小型的THz频谱分析仪是开发太赫兹科学技术中不可或缺的。本文对高温超导双晶结中晶界对磁通流运动的诱导作用，超导检测器与THz波的相互作用进行了研究，利用超导约瑟夫森结的对太赫兹波高灵敏的响应，通过Hilbert变换，研制出了超导小型THz频谱检测仪，并对多种太赫兹信号源进行了频谱测量。

Abstract: Terahertz (THz) is a waveband with great potential for researching and development. With high-sensitivity THz detection techniques, we have to know the THz signal power, its frequency and spectrum. Therefore, it is indispensable to develop a kind of miniaturized THz spectrum analyzer . This paper studies the induction of the vortice dynamic by the crystal boundary in the high temperature superconducting bi-crystal junction, and the interaction of superconducting detector and THz wave. It utilizes the high sensitivity response of superconducting Josephson junction to THz wave and Hilbert transform to develop a miniaturized superconducting THz spectrum detector. Meanwhile, this paper presents the frequency spectrum measurement of multiple THz radiation sources.

许伟伟*,郁梅,康琳,花涛,陈健,安德越. 基于超导检测器的太赫兹小型频谱检测仪[J]. 南京大学学报(自然科学版), 2014, 50(3): 262–.

Xu Weiwei, Yu Mei, An Deyue, Hua Tao, Jin Biaobing, Kang Lin, Chen Jian. A compact THz spectrum analyzer based on superconducting THz detector[J]. Journal of Nanjing University(Natural Sciences), 2014, 50(3): 262–.

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