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Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer
Zhang, W.1; Miao, W.1; Zhou, K. M.1,2; Li, S. L.1,2; Lin, Z. H.1; Yao, Q. J.1; Shi, S. C.1
2011-06-01
Source PublicationIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN1051-8223
Volume21Issue:3Pages:624-627
AbstractThe heterodyne mixing and direct detection performance of a superconducting NbN hot-electron bolometer (HEB) integrated with a log-spiral antenna have been thoroughly characterized. The corrected receiver noise temperature and IF gain bandwidth are approximately 800 K at 0.5 THz, 750 K at 0.85 THz and 3 GHz at its optimum bias point. In addition, both the receiver noise temperature and IF gain bandwidth were found insensitive to the bath temperature, while the bias point was fixed, in good agreement with those simulated with the hot-spot model taking account of the HEB's current-dependent resistive transition. Furthermore, the HEB's frequency response was measured by a Fourier transform spectrometer at different bias points and bath temperatures. The estimated noise equivalent power (NEP) was close to 10(-13) W/Hz(0.5) around the HEB's transition temperature.
KeywordConversion Gain Direct Response Hot Electron Bolometer Noise Temperature
Subject AreaEngineering ; Physics
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1109/TASC.2010.2097576
WOS KeywordHEB MIXER
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000291050500126
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/4429
Collection毫米波和亚毫米波技术实验室
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Grad Sch, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, W.,Miao, W.,Zhou, K. M.,et al. Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2011,21(3):624-627.
APA Zhang, W..,Miao, W..,Zhou, K. M..,Li, S. L..,Lin, Z. H..,...&Shi, S. C..(2011).Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,21(3),624-627.
MLA Zhang, W.,et al."Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21.3(2011):624-627.
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