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ORIGINAL RESEARCH article

Front. Phys.

Sec. Optics and Photonics

Volume 13 - 2025 | doi: 10.3389/fphy.2025.1641031

This article is part of the Research TopicFrontiers in Metamaterials: Advances in Electromagnetic Devices and SystemsView all 3 articles

Novel Chiral Metasurface Design with Ring Resonators for THz Applications

Provisionally accepted
Heba  G MohamedHeba G Mohamed1Sarunas  KiliusSarunas Kilius2Rozalina  ZakariRozalina Zakari1Roosvel  Soto-DiazRoosvel Soto-Diaz3*José  Escorcia- GutierrezJosé Escorcia- Gutierrez4Darius  AndriukaitisDarius Andriukaitis5
  • 1Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
  • 2Kaunas University of Technology, Kaunas, Lithuania
  • 3Universidad Simon Bolivar, Barranquilla, Colombia
  • 4Corporacion Universitaria de la Costa, Barranquilla, Colombia
  • 5Kauno technologijos universitetas, Kaunas, Lithuania

The final, formatted version of the article will be published soon.

As an artificial two-dimensional material, metasurfaces are essential for modifying the fundamental characteristics of electromagnetic (EM) waves. Numerous researchers have created and validated metasurface uses, including anomalous reflection, polarization rotation, and absorption. The development of chiral metasurfaces that exhibit spin-selective transmission or reflection offers a novel method of manipulating circularly polarized (CP) waves. Because of their enormous chiroptical responses, which are orders of magnitude larger than those of natural chiral materials, chiral metasurfaces have also garnered a lot of interest in the field of spin photonics. This paper proposes a novel chiral metasurface for dual-band THz circularly polarized anomalous reflecting and absorbing. The co-polarized reflection for incident right-handed and left-handed circularly polarized waves is achieved via the metasurface structure, which is made up of two chiral structures. The corresponding absorption rates are 96.3% and 90.9%, respectively. The full 360 o coverage is realized by rotating the chiral metasurface unit using Pancharatnam-Berry phase principle. Simulation results show that the proposed metasurface has multi-function beam control capability and can be deployed in chiral sensing, electromagnetic energy harvesting, polarization converters, radar and other applications.

Keywords: metasurface, THz waves, Metamaterial absorber, dual-polarized beam control, circular polarization

Received: 04 Jun 2025; Accepted: 30 Jul 2025.

Copyright: © 2025 Mohamed, Kilius, Zakari, Soto-Diaz, Escorcia- Gutierrez and Andriukaitis. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Roosvel Soto-Diaz, Universidad Simon Bolivar, Barranquilla, Colombia

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