Quantum noise in a terahertz hot electron bolometer mixer

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	Quantum noise in a terahertz hot electron bolometer mixer
	Zhang, W.1,2 ; Khosropanah, P.1; Gao, J. R.1,3; Kollberg, E. L.4; Yngvesson, K. S.5; Bansal, T.1,3; Barends, R.3; Klapwijk, T. M.3
刊名	APPLIED PHYSICS LETTERS
	2010-03-15
卷号	96 期号:11 页码:111113
关键词	bolometers millimetre wave mixers quantum noise
ISSN号	0003-6951
英文摘要	We have measured the noise temperature of a single, sensitive superconducting NbN hot electron bolometer (HEB) mixer in a frequency range from 1.6 to 5.3 THz, using a setup with all the key components in vacuum. By analyzing the measured receiver noise temperature using a quantum noise (QN) model for HEB mixers, we confirm the effect of QN. The QN is found to be responsible for about half of the receiver noise at the highest frequency in our measurements. The beta-factor (the quantum efficiency of the HEB) obtained experimentally agrees reasonably well with the calculated value.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000275825200013
公开日期	2011-11-23
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/997]
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.Univ Groningen, SRON Netherlands Inst Space Res, NL-9747 AD Groningen, Netherlands 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 3.Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands 4.Chalmers, Dept Microelect & Nanosci, SE-41296 Gothenburg, Sweden 5.Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA
推荐引用方式 GB/T 7714	Zhang, W.,Khosropanah, P.,Gao, J. R.,et al. Quantum noise in a terahertz hot electron bolometer mixer[J]. APPLIED PHYSICS LETTERS,2010,96(11):111113.
APA	Zhang, W..,Khosropanah, P..,Gao, J. R..,Kollberg, E. L..,Yngvesson, K. S..,...&Klapwijk, T. M..(2010).Quantum noise in a terahertz hot electron bolometer mixer.APPLIED PHYSICS LETTERS,96(11),111113.
MLA	Zhang, W.,et al."Quantum noise in a terahertz hot electron bolometer mixer".APPLIED PHYSICS LETTERS 96.11(2010):111113.