All dielectric chiral metasurface for wideband asymmetric transmission of linearly polarized waves.
Saved in:
| Title: | All dielectric chiral metasurface for wideband asymmetric transmission of linearly polarized waves. |
|---|---|
| Authors: | Hamed, Amira J.1,2 (AUTHOR), Elsayed, Omar M. A.2 (AUTHOR), Darweesh, M. Saeed1,2 (AUTHOR), Mahmoud, Ahmed M.1,2 (AUTHOR) amwmahmoud@nu.edu.eg |
| Source: | Optical & Quantum Electronics. May2025, Vol. 57 Issue 5, p1-16. 16p. |
| Subjects: | Electromagnetic waves, Linear polarization, Semiconductor technology, Energy dissipation, Resonators |
| Abstract: | Metasurfaces are two-dimensional (2D), or quasi 2D structures that offer precise manipulation of electromagnetic waves in terms of their amplitudes, phases, and polarization. All-Dielectric Metasurfaces (ADMs) allow for high electromagnetic wave transmission, minimal energy losses, and seamless integration with current semiconductor technologies. In this work, a chiral ADM that is based on silicon (Si) U-shaped resonators is presented. Numerical simulations demonstrate a broadband efficient Asymmetric Transmission of incident linear electromagnetic waves (1.07 to 1.28 µm) with 18.03% fractional bandwidth. The performance is explained via eigenmode analysis and the associated field profiles of the structure's eigenmodes. Moreover, the effects of different geometrical parameters are investigated providing insights for further optimization of the performance. [ABSTRACT FROM AUTHOR] |
| Copyright of Optical & Quantum Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Metasurfaces are two-dimensional (2D), or quasi 2D structures that offer precise manipulation of electromagnetic waves in terms of their amplitudes, phases, and polarization. All-Dielectric Metasurfaces (ADMs) allow for high electromagnetic wave transmission, minimal energy losses, and seamless integration with current semiconductor technologies. In this work, a chiral ADM that is based on silicon (Si) U-shaped resonators is presented. Numerical simulations demonstrate a broadband efficient Asymmetric Transmission of incident linear electromagnetic waves (1.07 to 1.28 µm) with 18.03% fractional bandwidth. The performance is explained via eigenmode analysis and the associated field profiles of the structure's eigenmodes. Moreover, the effects of different geometrical parameters are investigated providing insights for further optimization of the performance. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 03068919 |
| DOI: | 10.1007/s11082-025-08201-4 |
