Heterodyne Mixing and Direct Detection Performance of a Superconducting NbN Hot-Electron Bolometer
文献类型：期刊论文
| 作者 | 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
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| 刊名 | IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
 |
| 出版日期 | 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. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 学科主题 | Engineering ; Physics |
| 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 |
| 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. |
入库方式： OAI收割
来源：紫金山天文台
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