Highly efficient broadband anisotropic metasurface for cross polarization conversion operating in the terahertz band

Subhan Zakir; Abdullah Madni; Rana Muhammad Hasan Bilal; Yehia Massoud

doi:10.1117/12.2644774

4 January 2023 Highly efficient broadband anisotropic metasurface for cross polarization conversion operating in the terahertz band

Subhan Zakir, Abdullah Madni, Rana Muhammad Hasan Bilal, Yehia Massoud

Author Affiliations +

Proceedings Volume 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII; 1232206 (2023) https://doi.org/10.1117/12.2644774
Event: SPIE/COS Photonics Asia, 2022, Online Only

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.

Conference Presentation

Citation Download Citation

Subhan Zakir, Abdullah Madni, Rana Muhammad Hasan Bilal, and Yehia Massoud "Highly efficient broadband anisotropic metasurface for cross polarization conversion operating in the terahertz band", Proc. SPIE 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII, 1232206 (4 January 2023); https://doi.org/10.1117/12.2644774

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