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Twin-Slot Antenna-Coupled Superconducting Ti Transition-Edge Sensor at 350GHz
Zhang, W.1,2; Miao, W.1,2; Wang, Z.1,2; Guo, X. H.1,2; Liu, D.1,2; Zhong, J. Q.1,2; Yao, Q. J.1,2; Shi, S. C.1,2
2018-11-01
Source PublicationJOURNAL OF LOW TEMPERATURE PHYSICS
ISSN0022-2291
Volume193Issue:3-4Pages:276-281
Abstract

We have developed four-leg-supported superconducting Ti transition-edge sensors (TES) formed by KOH wet etching. Energy relaxation mechanism is changed from electron-phonon coupling to diffusive phonon after wet etching. The current-voltage curves of the same TES device were measured before and after wet etching. After wet etching, its thermal conductance (G) is reduced to 500pW/K from 8950pW/K. The measured effective response time ((eff)) is 143s, about 30 times larger. In addition, we have studied the optical noise equivalent power (NEP) with a cryogenic blackbody in combination with metal-mesh filters to define the radiation bandwidth. The obtained optical NEP is 5x10(-16)W/Hz, which is suitable for ground-based astronomical applications.

KeywordTransition-edge sensor Thermal conductance Noise equivalent power Optical response
DOI10.1007/s10909-018-1954-8
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter
WOS IDWOS:000447975800027
PublisherSPRINGER/PLENUM PUBLISHERS
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/20983
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, W.; Shi, S. C.
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, W.,Miao, W.,Wang, Z.,et al. Twin-Slot Antenna-Coupled Superconducting Ti Transition-Edge Sensor at 350GHz[J]. JOURNAL OF LOW TEMPERATURE PHYSICS,2018,193(3-4):276-281.
APA Zhang, W..,Miao, W..,Wang, Z..,Guo, X. H..,Liu, D..,...&Shi, S. C..(2018).Twin-Slot Antenna-Coupled Superconducting Ti Transition-Edge Sensor at 350GHz.JOURNAL OF LOW TEMPERATURE PHYSICS,193(3-4),276-281.
MLA Zhang, W.,et al."Twin-Slot Antenna-Coupled Superconducting Ti Transition-Edge Sensor at 350GHz".JOURNAL OF LOW TEMPERATURE PHYSICS 193.3-4(2018):276-281.
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