Terahertz polarization detection characteristics of a photoconductive antenna detector

被引：0
|
作者：
Wang, Zhiquan [1 ]
Shi, Wei [1 ]
Hou, Lei [1 ]
Wang, Haiqing [1 ]
Wu, Meilin [1 ]
Li, Chaofan [1 ]
Chen, Zhiyuan [1 ]
机构：
[1] Xian Univ Technol, Key Lab Ultrafast Photoelect Technol & Terahertz, Xian 710048, Peoples R China
来源：
2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ) | 2021年
关键词：
D O I：
10.1109/IRMMW-THz50926.2021.9566861
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Terahertz time-domain spectroscopy system (THz-TDS) has been widely used in the fields of substance detection, composition analysis and other fields. In order to accurately obtain the optical properties of the sample, it is essential to accurately measure the polarization direction of the terahertz electric field in THz-TDS. In this paper, a dual-polarization THz time-domain spectroscopy system is reported, and a dual-polarization photoconductive antenna array detector is designed to simultaneously detect both the terahertz time domain waveform and the terahertz electric field direction. The experimental results show that the polarization contrast ratio of the detector is 556:1.
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