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Measurement of the Spectral Response of Spiral-Antenna Coupled Superconducting Hot Electron Bolometers
Zhang, W.1,2; Miao, W.1,2; Li, S. L.1,2,3; Zhou, K. M.1,2,3; Shi, S. C.1,2; Gao, J. R.4,5; Goltsman, G. N.6
2013-06-01
Source PublicationIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN1051-8223
Volume23Issue:3Pages:0
Corresponding AuthorZhang, W (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China. Email: wzhang@pmo.ac.cn ; scshi@pmo.ac.cn
AbstractMeasured spectral response of spiral-antenna coupled superconducting hot electron bolometers (HEBs) often drops dramatically at frequencies that are still within the frequency range of interest (e. g., similar to 5 THz). This is inconsistent with the implied low receiver noise temperatures from the same measurements. To understand this discrepancy, we exhaustively test and calibrate the thermal sources used in Fourier transform spectrometer measurements. We first investigate the absolute emission spectrum of high-pressure Hg arc lamp, then measure the spectral response of two spiral-antenna coupled NbN HEBs with a Martin-Puplett interferometer as spectrometer and 77 K blackbody as broadband signal source. The measured absolute emission spectrum of Hg arc lamp is proportional to frequency, corresponding to an equivalent blackbody temperature of 4000 K at 1 THz, 1500 K at 3 THz, and 800 K at 5 THz, respectively. Measured spectral response of spiral-antenna coupled NbN HEBs, corrected for air absorption, is nearly flat in the frequency range of 0.5-4 THz, consistent with simulated coupling efficiency between HEB and spiral-antenna. These results explain the discrepancy, and prove that spiral-antenna coupled superconducting NbN HEBs work well in a wide frequency range. In addition, this calibration method and these results are broadly applicable to other quasi-optical THz receivers.
KeywordFourier Transform Spectrometer Optical Throughput Spectral Response Spiral-antenna
Subject AreaPhysics, Engineering
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1109/TASC.2013.2245173
WOS KeywordHEB MIXER
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000318867100067
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9803
Collection毫米波和亚毫米波技术实验室
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 10040, Peoples R China
4.SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands
5.Delft Univ Technol, NL-2628 CE Delft, Netherlands
6.Moscow State Pedag Univ, Moscow 119882, Russia
Recommended Citation
GB/T 7714
Zhang, W.,Miao, W.,Li, S. L.,et al. Measurement of the Spectral Response of Spiral-Antenna Coupled Superconducting Hot Electron Bolometers[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2013,23(3):0.
APA Zhang, W..,Miao, W..,Li, S. L..,Zhou, K. M..,Shi, S. C..,...&Goltsman, G. N..(2013).Measurement of the Spectral Response of Spiral-Antenna Coupled Superconducting Hot Electron Bolometers.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,23(3),0.
MLA Zhang, W.,et al."Measurement of the Spectral Response of Spiral-Antenna Coupled Superconducting Hot Electron Bolometers".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23.3(2013):0.
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