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Noise and Bandwidth of 0.5-THz Twin Vertically Stacked SIS Junctions
Li, Jing1; Shi, Sheng-Cai1; Liu, Dong1; Zhou, Kang-Ming1; Wang, MingJye2; Chen, Tse-Jun2; Chen, Chong-Wen2; Lu, Wei-Chun2; Chiu, ChuangPing2; Chang, Hsian-Hong2
AbstractTwin SIS (superconductor-insulator-superconductor) junctions, with a simple structure, yet large bandwidth and low noise temperature, have been widely used in millimeter- and submillimeter-wave heterodyne mixers. With increasing frequency, however, the length of the tuning inductance connecting the two individual SIS junctions becomes short while the junction area remains fixed. With a relatively short tuning inductance, the effect of the junction's spreading inductance becomes non-negligible, and device fabrication becomes more difficult. By adopting vertically stacked SIS junctions (VSJs), which have an equivalent geometric capacitance inversely proportional to the junction number, it becomes feasible to increase the junction tuning inductance. In this paper, we report on the design, fabrication, and characterization of twin Nb/Al-AlOx/Nb/Al-AlOx/Nb VSJs for the 500-GHz frequency band.
KeywordMixer Noise Sis Devices (Superconductor) Submillimeter Wave Mixers Superconducting Integrated Circuit
Subject AreaEngineering ; Physics
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000291050500135
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
Recommended Citation
GB/T 7714
Li, Jing,Shi, Sheng-Cai,Liu, Dong,et al. Noise and Bandwidth of 0.5-THz Twin Vertically Stacked SIS Junctions[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2011,21(3):663-666.
APA Li, Jing.,Shi, Sheng-Cai.,Liu, Dong.,Zhou, Kang-Ming.,Wang, MingJye.,...&Chang, Hsian-Hong.(2011).Noise and Bandwidth of 0.5-THz Twin Vertically Stacked SIS Junctions.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,21(3),663-666.
MLA Li, Jing,et al."Noise and Bandwidth of 0.5-THz Twin Vertically Stacked SIS Junctions".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21.3(2011):663-666.
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