Terahertz imaging using photomixers based on quantum well photodetectors
Terahertz imaging using photomixers based on quantum well photodetectors
复制标题
使用基于量子阱光电探测器的光混合器进行太赫兹成像
DOI:
10.1063/1.4993634
复制
发表时间:
2017-10
期刊:
影响因子:
1.6
通讯作者:
J. C. Cao
中科院分区:
文献类型:
--
作者:
T. Zhou;Hua Li;W. J. Wan;Z. L. Fu;J. C. Cao
Due to the fast intersubband transitions, the terahertz (THz) quantum well photodetector (QWP) is supposed to work fast. Recently it has been demonstrated that the THz QWP can detect the THz light modulated at 6.2 GHz and therefore it can be used as a photomixer [H. Li et al., Sci. Rep. 7, 3452 (2017)]. In this work, the authors report a novel active THz imaging using THz QWP photomixers. The THz radiation source used for this imaging application is a multi-mode THz quantum cascade laser (QCL) operating in continuous wave mode. When the fast THz QWP is illuminated by the multi-mode THz radiation, the intermediate frequency signal that is resulted from the frequency beating between the neighbouring THz modes of the QCL can be extracted from the QWP mesa for imaging applications. Employing the technique, the frequency can be down-converted from the THz range to the microwave regime. And therefore, the signal can then be amplified, filtered, and detected using the mature microwave technology.
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影响因子:
2.9
作者:
Shi Lu;Duan Xiao-Hui;Zhu Li-Guo;Liu Xun;Pei Chong-Hua
通讯作者:
Pei Chong-Hua
影响因子:
4
作者:
Lee, Alan W. M.;Qin, Qi;Hu, Qing
通讯作者:
Hu, Qing
影响因子:
4
作者:
M. Ravaro;V. Jagtap;G. Santarelli;C. Sirtori;Lianhe H. Li;S. Khanna;E. Linfield;S. Barbieri
通讯作者:
M. Ravaro;V. Jagtap;G. Santarelli;C. Sirtori;Lianhe H. Li;S. Khanna;E. Linfield;S. Barbieri
影响因子:
1.4
作者:
Oda, Naoki
通讯作者:
Oda, Naoki
DOI:
10.1109/cleoe.2005.1567878
发表时间:
2005-04
期刊:
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.
影响因子:
--
作者:
G. Scalari;N. Hoyler;M. Giovannini;J. Faist
通讯作者:
G. Scalari;N. Hoyler;M. Giovannini;J. Faist