超高灵敏度太赫兹超导探测技术发展

李婧; 张文; 缪巍; 史生才

doi:10.3788/CO.20171001.0122

超高灵敏度太赫兹超导探测技术发展

doi: 10.3788/CO.20171001.0122

中国科学院紫金山天文台射电天文重点实验室, 江苏南京 210000

基金项目:

国家自然科学基金重大仪器研制专项资助项目 11127903

国家自然科学基金重大基金资助项目 11190012

国家自然科学基金优秀青年基金资助项目 11422326

详细信息

通讯作者:
李婧(1978-), 女, 山东青岛人, 博士, 项目研究员, 2009年于中科院紫金山天文台获得博士学位, 主要从事射电天文、超导电子学方面的研究。E-mail:lijing@pmo.ac.cn

中图分类号: P161
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出版历程
- 收稿日期: 2016-09-30
- 修回日期: 2016-10-24
- 刊出日期: 2017-02-25

Development of ultra high sensitivity superconducting THz detectors

Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210000, China

Funds:

Supported by Major Program of National Natural Science Foundation of China 11127903

Supported by Major Program of National Natural Science Foundation of China 11190012

National Natural Science Funds for Excellent Young Scholar 11422326

More Information

Corresponding author: E-mail:lijing@pmo.ac.cn

摘要

摘要: 太赫兹波段占有宇宙微波背景（CMB）辐射以后宇宙空间近一半的光子能量，该波段在天文学研究中具有不可替代的作用，因此太赫兹天文学的研究，具有极其重要的科学意义。本文系统介绍了基于超高灵敏度太赫兹超导探测技术的太赫兹相干探测器发展状况，包括超导隧道结混频器（SIS）和超导热电子混频器（HEB），以及以超导动态电感探测器（MKIDs）和超导相变边缘探测器（TES）为代表的非相干探测器的研究。在此基础上，展望了该领域未来发展趋势，对我国太赫兹天文探测技术的发展具有一定的参考意义。
- 太赫兹 /
- 超导 /
- 相干探测 /
- 非相干探测
Abstract: Nearly half of the photon energy is occupied in Terahertz waveband after the cosmic microwave background (CMB) radiation in space, which plays an irreplaceable role in the study of astronomy. So the terahertz astronomy research has extremely important scientific significance. In this paper, we introduce the development of the terahertz coherent detectors bosed on ultra high sensitivity superconducting terahertz detection technology, including superconducting tunnel junction the mixer (SIS) and superconducting hot electron mixer (HEB), and non coherent detectors such as superconducting dynamic inductance detector (MKIDs) and superconducting transition edge detector (TES). The future development trend is also prospected. The review for superconducting THz detectors has the reference significance for the development of astronomical terahertz detection technique in our country.
- THz /
- superconductor /
- coherent detection /
- incoherent detection

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图 1 (a)0.5 THz氮化铌超导SIS接收机系统和(b)第一条基于其观测的天文谱线

Figure 1. (a)0.5 THz NbN SIS receiver and (b) the 1^st astronomical observation ever done with NbN SIS mixers

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图 2 HEB器件结构平面示意图

Figure 2. Structure diagram of the HEB device

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图 3 (a)2.7 THz量子级联激光器结构示意图，(b)模拟仿真整形前2.7 THz量子级联激光器远场辐射方向图，(c)模拟仿真整形后2.7 THz量子级联激光器远场辐射方向图和(d)实验测得整形后2.7 THz量子级联激光器远场辐射方向图

Figure 3. (a) Structure diagram of the 2.7 THz QCL, (b) far field radiation pattern of the 2.7 THz QCL before the simulation shaping, (c) far field radiation pattern of the 2.7 THz QCL after the simulation shaping and (d) far field radiation pattern of the 2.7 THz QCL after the testing

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图 4 TES探测器阵列结构图

Figure 4. Structure of the TES array

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图 5 (a) MKIDs探测器的单像元结构图和(b)工作原理示意曲线图

Figure 5. (a) Structure of the one pixel MKIDs detector and (b) the diagram of the working principle

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