https://doi.org/10.1140/epjd/s10053-023-00657-x
Regular Article – Optical Phenomena and Photonics
Actively switchable polarization converter for reflection and transmission in the same terahertz frequencies
1
School of Electronic Engineering, Huainan Normal University, 232038, Huainan, People’s Republic of China
2
State Key Laboratory of Electronic
Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Xiyuan Ave, 610054, Chengdu, People’s Republic of China
f
zjb3617@163.com
g
qywen@uestc.edu.cn
Received:
16
January
2023
Accepted:
17
April
2023
Published online:
25
May
2023
A metamaterial-based dual-function switchable polarization conversion device working in terahertz frequency regime is proposed and verified by both numerical methods of finite element method and finite difference time domain. Based on phase transition of vanadium dioxide component from dielectric state to metal state, the transmissive–reflective switching function with high polarization conversion ratios (above 90%) simultaneously can be achieved in the same frequency domains (from 5.30 to 10.70 THz). In the meantime, the transmitted–reflective coupling effects and transmitted polarization-sensitive merit can be illustrated by distributions of surface currents and electric fields, respectively. According to the interesting results, the flexible polarization conversion with a switching function shows great potential application prospects in polarization-related communication and switching devices.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
