Terahertz direct-detection behavior of niobium nitride superconducting tunnel junctions above liquid helium temperature
文献类型：期刊论文
| 作者 | Wang, Zheng1,2 ; Liu, Dong1,2; Li, Shao-liang1,2; Li, Jing1,2; Shi, Sheng-Cai1,2
|
| 刊名 | SUPERCONDUCTOR SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2014-07-01 |
| 卷号 | 27期号:7页码:0 |
| 关键词 | terahertz direct detection niobium nitride superconducting tunneling junction liquid helium |
| ISSN号 | 0953-2048 |
| 英文摘要 | Niobium nitride (NbN) superconducting tunnel junctions (STJs) have an energy gap nearly double that of niobium STJs, making them potential sensitive detectors that operate at higher frequencies and temperatures. In this paper, we investigate the direct-detection behavior (i.e. the spectral response, current responsivity, noise characteristics, and noise equivalent power (NEP)) of a 500 GHz NbN STJ detector at temperatures from approximately 5 to 9 K. The detector shows an uncorrected NEP of 3.8 x 10(-13) W/root Hz around 5 K and 1.5 x 10(-12) W/root Hz at 9 K. Its performance can be further improved by adopting a cryogenically cooled readout circuit and fabricating the device with a wiring layer of higher critical-transition temperatures. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Applied ; Physics, Condensed Matter |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | MILLIMETER ; MICROWAVE ; FUTURE ; ARRAYS ; MIXERS |
| 收录类别 | SCI |
| 原文出处 | 10.1088/0953-2048/27/7/075003 |
| 语种 | 英语 |
| WOS记录号 | WOS:000338536400006 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10580]  |
| 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, Purple Mt Observ, Millimeter & Submillimeter Wave Lab, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zheng,Liu, Dong,Li, Shao-liang,et al. Terahertz direct-detection behavior of niobium nitride superconducting tunnel junctions above liquid helium temperature[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2014,27(7):0. |
| APA | Wang, Zheng,Liu, Dong,Li, Shao-liang,Li, Jing,&Shi, Sheng-Cai.(2014).Terahertz direct-detection behavior of niobium nitride superconducting tunnel junctions above liquid helium temperature.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,27(7),0. |
| MLA | Wang, Zheng,et al."Terahertz direct-detection behavior of niobium nitride superconducting tunnel junctions above liquid helium temperature".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 27.7(2014):0. |
入库方式： OAI收割
来源：紫金山天文台
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