DocumentCode
3691361
Title
Superconducting detectors for terahertz imaging
Author
S. L. Jiang;X. Q. Jia;B. B. Jin;L. Kang;W. W. Xu;J. Chen;P. H. Wu
Author_Institution
Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210093
fYear
2015
Firstpage
1
Lastpage
2
Abstract
Superconducting niobium nitride (NbN) hot electron bolometer (HEB) detectors consist of a complementary logarithmic-spiral antenna made of gold and an NbN film (bridge) connecting across the antenna´s inner terminals have been fabricated and characterized. For its performance as a heterodyne mixer, the system DSB noise temperature of about 500 K and the intermediate frequency (IF) gain bandwidth (GBW) of about 4 GHz have been obtained at 4.2 K and 0.65 THz. For its performance as a direct detector, a microwave-driven scheme has been tried.
Keywords
"Detectors","Films","Temperature measurement","Mixers","Microwave measurement","Superconducting microwave devices","Bolometers"
Publisher
ieee
Conference_Titel
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
ISSN
2162-2027
Electronic_ISBN
2162-2035
Type
conf
DOI
10.1109/IRMMW-THz.2015.7327514
Filename
7327514
Link To Document