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J. Chen 1, L. Kang 1, B. B. Jin 1, W. W. Xu 1, P.H. Wu 1*, W. Zhang 2,3, L. Jiang 2, N. Li 2, S.C. Shi 2, and G.N. Gol'tsman 3
1 Department of Electronics Science & Engineering, Nanjing University, Nanjing, 210093, China
2 Purple Mountain Observatory, CAS, Nanjing, 210008, China
3 Department of Physics, Moscow State Pedagogical University, Moscow 119992, Russia
*1 Email: phwu@nju.edu.cn
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Abstract: A quasi-optical superconducting niobium nitride (NbN) hot electron bolometer (HEB) mixer has been fabricated and measured in the terahertz (THz) frequency range of 0.5~2.52 THz. A receiver noise temperature of 2000 K at 2.52 THz has been obtained for the mixer without corrections. Also, the effect of a Parylene C anti-reflection (AR) coating on the silicon (Si) lens has been studied.
Keywords: Hot electron bolometer (HEB) mixer, Terahertz, Noise temperature, Heterodyne detector
Published: 2008-03-18
Acknowledgments: This work was partially supported by NSFC (10778602 and 60571007), and the National Basic Research Program of China (973 Program: 2006CB601006 and 2007CB310404).
Cite this article:
J. Chen, L. Kang, B. B. Jin, W. W. Xu, P.H. Wu, W. Zhang, L. Jiang, N. Li, S.C. Shi, and G.N. Gol'tsman. Properties of Terahertz Superconducting Hot Electron Bolometer Mixers[J]. International Journal of Terahertz Science and Technology, 2008, Vol.1, No.1: 37-41. DOI:10.11906/TST.037-041.2008.03.05
URL: http://www.tstnetwork.org/10.11906/TST.037-041.2008.03.05
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