Abstract
Terahertz (THz) band has been attracting an enormous reputation due to the paucity of natural materials in this range. Artificially flat thin films, called metasurfaces, plead the research community owing to their unprecedented features to manipulate the scattering properties of electromagnetic (EM) waves. Capitalizing on these unique attributes of the metasurfaces, a wideband polarization converter is investigated for THz frequencies. The proposed metasurface rotates the incoming EM wave into its cross-component over a broad spectral range from 1 THz to 1.75 THz. The designed polarization conversion metasurface (PCM) manifests above 90% efficiency, having a bandwidth of 0.75 THz. This unit cell is also scalable to other operating regimes such as microwave and visible, just by scaling its physical dimensions. This kind of wideband PCM remains prudent for various applications of radar cross-section reduction (RCSR), imaging, communication, etc.
Original language | English (US) |
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Title of host publication | Nanophotonics, Micro/Nano Optics, and Plasmonics VIII |
Editors | Zhiping Zhou, Kazumi Wada, Limin Tong |
Publisher | SPIE |
ISBN (Electronic) | 9781510657106 |
DOIs | |
State | Published - 2022 |
Event | Nanophotonics, Micro/Nano Optics, and Plasmonics VIII 2022 - Virtual, Online, China Duration: Dec 5 2022 → Dec 11 2022 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 12322 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Nanophotonics, Micro/Nano Optics, and Plasmonics VIII 2022 |
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Country/Territory | China |
City | Virtual, Online |
Period | 12/5/22 → 12/11/22 |
Bibliographical note
Publisher Copyright:© 2022 SPIE.
Keywords
- anisotropic
- polarization conversion metasurface (PCM)
- radar cross-section reduction (RCSR)
- reflection
- Terahertz
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering