太赫兹科学与电子信息学报2017，Vol.15Issue(3)：354-357,4.DOI:10.11805/TKYDA201703.0354
基于高温超导约瑟夫森结的小型频谱检测仪
Small terahertz spectrometer based on high temperature superconducting Josephson junction
摘要
Abstract
Terahertz(THz) wave is the last comprehensive research and development wave band of the electromagnetic spectrum. In order to achieve the terahertz signal spectrum measurement, a study of THz spectrometer based on high temperature superconducting Josephson junctions(JJS) is launched. The YBa2Cu3O7 (YBCO) bi-crystal Josephson junctions with log-periodic antennas are utilized as detectors. Under the low temperature, by using the signal measuring system, data acquisition and LabVIEW control interface, etc., the THz spectrometer based on high temperature superconducting JJS is finally realized and reaches the measurement of the frequency range from 0.1THz to 2.5THz. The frequency resolution reaches 0.04GHz (@114GHz) and 2GHz(@1.78THz). The influence factors of resolution are preliminarily analyzed.关键词
太赫兹/高温超导/Hilbert变换/频谱仪Key words
terahertz/high temperature superconducting/Hilbert transformation/spectrometer分类
信息技术与安全科学引用本文复制引用
许颖超,许伟伟,郁梅,陈健,金飚兵,康琳,吴培亨..基于高温超导约瑟夫森结的小型频谱检测仪[J].太赫兹科学与电子信息学报,2017,15(3):354-357,4.基金项目
国家重点基础研究发展计划资助项目(2014CB339804) （2014CB339804）
国家自然科学基金资助项目(61371036和61571219) （61371036和61571219）
江苏省青年基金资助项目(BK20131032) （BK20131032）
