Back to Search Start Over

New Antenna for Detecting Polarization States of Terahertz

Authors :
Wei Shi
Zhiquan Wang
Chaofan Li
Lei Hou
Yue Pan
Source :
Frontiers in Physics, Vol 10 (2022)
Publication Year :
2022
Publisher :
Frontiers Media S.A., 2022.

Abstract

The polarization measurement of terahertz (THz) waves is indispensable in THz time-domain spectroscopy (THz-TDS) applications to detect material properties. The rapid development of accurate THz wave polarization-sensitive detectors will greatly promote THz-TDS applications. A new type of photoconductive antenna array detector is proposed in this paper. The antenna is composed of two vertical 1*2 arrays, which respectively detect the orthogonal component of the terahertz pulse in any direction, while quickly and accurately detecting the polarized THz waves. Rotating the detector to measure the THz electric field at different angles shows the reliability of the detector for THz wave polarization measurement. Its polarization detection accuracy is 0.2°. At the same time, we use the response matrix to analyze the symmetry of the antenna array.

Details

Language :
English
ISSN :
2296424X
Volume :
10
Database :
Directory of Open Access Journals
Journal :
Frontiers in Physics
Publication Type :
Academic Journal
Accession number :
edsdoj.61971d7ee6241b8b943d20f68085438
Document Type :
article
Full Text :
https://doi.org/10.3389/fphy.2022.850770