Bibliographic Details
| Title: |
Magnetic-induced dual-function tunable THz polarization conversion metamaterial based on Ni-Mn-Sn shape memory alloy films |
| Authors: |
Xiaochuan Wang, Ruixian Liu, Kun Zhang, Rui Liu, Jiachen Zhu, Xiaohua Tian, Changlong Tan |
| Source: |
Results in Optics, Vol 9, Iss , Pp 100274- (2022) |
| Publisher Information: |
Elsevier, 2022. |
| Publication Year: |
2022 |
| Collection: |
LCC:Optics. Light |
| Subject Terms: |
Optics. Light, QC350-467 |
| More Details: |
Due to the improvement in miniaturization and practicability of polarization conversion devices, the terahertz polarization control technology has been paid more and more attention. Nevertheless, a critical factor in restricting its development is short of dynamic and multifunctional materials. Ferromagnetic shape memory alloys (FSMAs) provide a novelty solution for tunable metamaterials because of their excellent recovery deformation, non-contact control, and fast response. Here, a new magnetic-induced tunable THz metamaterial is proposed, composed of Ni-Mn-Sn FSMAs resonator in strip structure, polyimide dielectric, and metal copper substrate. Numerical results reveal that the polarization converter can realize any in a broad band between 1.04 and 1.96 THz by applying different magnetic fields to adjust the elastic deformation of Ni-Mn-Sn. Notably, the device can also realize line circularly polarized light conversion in the range of 0.87–0.92 THz and 2.07–2.12 THz. Compared to the current state-of-the-art double functional polarization converter, the THz converter proposed in this work offers benefits in many respects, including the 61.3% relative bandwidth and high conversion efficiency. Our study provides an excellent strategy to develop actively tunable and multifunctional THz compact devices. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2666-9501 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2666950122000645; https://doaj.org/toc/2666-9501 |
| DOI: |
10.1016/j.rio.2022.100274 |
| Access URL: |
https://doaj.org/article/c4dd242a4bae4577a2ec9b45bf1196b8 |
| Accession Number: |
edsdoj.4dd242a4bae4577a2ec9b45bf1196b8 |
| Database: |
Directory of Open Access Journals |
