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3.4 THz heterodyne receiver using a hot electron bolometer and a distributed feedback quantum cascade laser
Khosropanah, P.1; Zhang, W.1,2; Hovenier, J. N.3; Gao, J. R.1,3; Klapwijk, T. M.3; Amanti, M. I.4; Scalari, G.4; Faist, J.4
2008-12-01
Source PublicationJOURNAL OF APPLIED PHYSICS
Volume104Issue:11
AbstractWe report a heterodyne receiver using a superconducting NbN hot electron bolometer (HEB) integrated with a tight winding spiral antenna as mixer and a distributed feedback (DFB) terahertz quantum cascade laser (QCL) operating at 3.42 THz as local oscillator. The aim is to demonstrate the readiness of both devices for the detection of OH lines at 3.5 THz in a real instrument. We show that the improved single-spot beam of the terahertz QCL can easily pump the HEB mixer. We measured a double sideband receiver noise temperature of 2100 K at the optimum local oscillator power of 290 nW. This noise temperature can be further reduced to 1100 K if we correct the loss due to the use of an uncoated lens, and the losses of the window and the air. Therefore, the combination of a HEB and such a DFB QCL can in principle be used to detect an OH line at 3.5 THz. However, a high input power of several watts, which is needed to operate the QCL in a liquid-helium cryostat, poses a big challenge to the receiver stability. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3032354]
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1063/1.3032354
WOS KeywordLOCAL OSCILLATOR ; OPERATION ; SOUNDER ; MODE
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000262364000007
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15886
Collection毫米波和亚毫米波技术实验室
Affiliation1.Univ Groningen, SRON Netherlands Inst Space Res, NL-9747 AD Groningen, Netherlands
2.Chinese Acad Sci, NAOC, PMO, Jiangsu 210008, Peoples R China
3.Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands
4.ETH, Inst Quantum Elect, CH-8096 Zurich, Switzerland
Recommended Citation
GB/T 7714
Khosropanah, P.,Zhang, W.,Hovenier, J. N.,et al. 3.4 THz heterodyne receiver using a hot electron bolometer and a distributed feedback quantum cascade laser[J]. JOURNAL OF APPLIED PHYSICS,2008,104(11).
APA Khosropanah, P..,Zhang, W..,Hovenier, J. N..,Gao, J. R..,Klapwijk, T. M..,...&Faist, J..(2008).3.4 THz heterodyne receiver using a hot electron bolometer and a distributed feedback quantum cascade laser.JOURNAL OF APPLIED PHYSICS,104(11).
MLA Khosropanah, P.,et al."3.4 THz heterodyne receiver using a hot electron bolometer and a distributed feedback quantum cascade laser".JOURNAL OF APPLIED PHYSICS 104.11(2008).
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