Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 毫米波和亚毫米波技术实验室

	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
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2011-06-01
卷号	21 期号:3 页码:624-627
关键词	Conversion gain direct response hot electron bolometer noise temperature
ISSN号	1051-8223
英文摘要	The 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.
学科主题	Engineering ; Physics
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Electrical & Electronic ; Physics, Applied
研究领域[WOS]	Engineering ; Physics
关键词[WOS]	HEB MIXER
收录类别	SCI
语种	英语
WOS记录号	WOS:000291050500126
公开日期	2012-08-07
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/4429]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.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
推荐引用方式 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.