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Fast-Response Superconducting Titanium Bolometric Detectors
Zhong, JiaQiang1,2; Zhang, Wen1,2; Miao, Wei1,2; Liu, Dong1,2; Wang, Zheng1,2; Duan, Wen-Yang1,2; Wu, Feng1,2; Zhang, Kun1,2; Yao, Qijun1,2; Shi, Sheng-Cai1,2; Wang, Ming-Jye3; Pajot, Francois4
2019-08-01
Source PublicationIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN1051-8223
Volume29Issue:5Pages:5
Corresponding AuthorShi, Sheng-Cai(scshi@pmo.ac.cn)
AbstractHigh time resolution optical/infrared (IR) astronomy will require fast response detectors. In order to meet such requirement, cryogenic optical/IR detectors, such as superconducting tunnel junctions and transition-edge sensors, are under development. Of these cryogenic detectors, superconducting titanium (Ti) bolometric detectors, with a transition temperature of around 300 mK, based on the electron-phonon decoupling mechanism, are promising in fast response. In this paper, we report on the characterization of electro-thermal properties of a small-size (1 mu m x 1 mu m x 37 nm) superconducting Ti detector. The low-frequency noise of Ti film was fitted by empirical Hooge model. A discrepancy between the Hooge constant of the Ti film and that of normal metals shows disorder in the Ti film. Thermal conductance was extracted via measured current-voltage curves at different bath temperatures. The time constant was calculated as tens of nanoseconds, which was faster than expected. The fast response potentially enables the high-speed optical/IR astronomical observations. Detailed experimental and analytical results are also presented.
KeywordSuperconducting detectors bolometers electrothermal feedback noise equivalent power
DOI10.1109/TASC.2019.2900579
WOS KeywordLOW-NOISE ; ELECTROTHERMAL FEEDBACK ; ELECTRON ; NANOBOLOMETERS ; BANDWIDTH
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000463045300001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24183
Collection中国科学院紫金山天文台
Corresponding AuthorShi, Sheng-Cai
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Jiangsu, Peoples R China
3.Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
4.Inst Rech Astrophys & Planetol, F-31400 Toulouse, France
Recommended Citation
GB/T 7714
Zhong, JiaQiang,Zhang, Wen,Miao, Wei,et al. Fast-Response Superconducting Titanium Bolometric Detectors[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2019,29(5):5.
APA Zhong, JiaQiang.,Zhang, Wen.,Miao, Wei.,Liu, Dong.,Wang, Zheng.,...&Pajot, Francois.(2019).Fast-Response Superconducting Titanium Bolometric Detectors.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,29(5),5.
MLA Zhong, JiaQiang,et al."Fast-Response Superconducting Titanium Bolometric Detectors".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 29.5(2019):5.
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