High sensitive THz superconducting hot electron bolometer mixers and transition edge sensors

被引：0

作者：

Zhang, W. ^{[1
,2
]}

Miao, W. ^{[1
,2
]}

Zhou, K. M. ^{[1
,2
]}

Guo, X. H. ^{[1
,2
]}

Zhong, J. Q. ^{[1
,2
]}

Shi, S. C. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China

来源：

INFRARED, MILLIMETER-WAVE, AND TERAHERTZ TECHNOLOGIES IV | 2016年 / 10030卷

关键词：

Hot electron bolometer; Receiver noise temperature; Transition edge sensor; Noise equivalent power;

D O I：

10.1117/12.2246517

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Terahertz band, which is roughly defined as 0.1 THz to 10 THz, is an interesting frequency region of the electromagnetic spectrum to be fully explored in astronomy. THz observations play key roles in astrophysics and cosmology. High sensitive heterodyne and direct detectors are the main tools for the detection of molecular spectral lines and fine atomic structure spectral lines, which are very important tracers for probing the physical and chemical properties and dynamic processes of objects such as star and planetary systems. China is planning to build an THz telescope at Dome A, Antarctica, a unique site for ground-based THz observations. We are developing THz superconducting hot electron bolometer (HEB) mixers and transition edge sensors (TES), which are quantum limited and back-ground limited detectors, respectively. Here we first introduce the working principles of superconducting HEB and TES, and then mainly present the results achieved at Purple mountain Observatory.

引用

页数：8

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