Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach
Abstract This study utilises simulations to investigate the potential of a novel multi-layered topological insulator-based wideband absorber design. The proposed design is constructed with a multilayer structure that incorporates meticulously chosen materials to enhance light absorption. The top lay...
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Nature Portfolio
2025-08-01
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| Online Access: | https://doi.org/10.1038/s41598-025-14623-7 |
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| author | Vishal Sorathiya Zen A. Sbeah Ahmad Alghamdi Amar Y. Jaffar Abdullah G. Alharbi |
| author_facet | Vishal Sorathiya Zen A. Sbeah Ahmad Alghamdi Amar Y. Jaffar Abdullah G. Alharbi |
| author_sort | Vishal Sorathiya |
| collection | DOAJ |
| description | Abstract This study utilises simulations to investigate the potential of a novel multi-layered topological insulator-based wideband absorber design. The proposed design is constructed with a multilayer structure that incorporates meticulously chosen materials to enhance light absorption. The top layer is composed of a metal (Fe/Ti/Cu/Zn/Ag/Au), which is followed by an insulating layer (Si/SiO₂/InP) and a topological insulator (Bi₁.₅Sb₀.₅Te₁.₈Se₁.₂). These layers are sandwiched between two metal layers (Fe/Ti/Cu/Zn/Ag/Au). The proposed structure is analysed for two different resonator-based designs, considering both the L-shaped metal resonator and the complementary L-shaped resonator for the overall computational analysis. The overall structure is computed for the broad range of the wavelength spectrum (0.2–1.6 μm). The proposed metamaterial design achieves an absorption rate of ~ 99% across multiple wavelength bands. This structure also investigated the different parametric values, such as physical dimensions and oblique angle of incident, to identify the optimised values of the different parameters. The metamaterial parameters, such as permittivity, permeability, refractive index, and impedance values, are also investigated over the entire wavelength spectrum, which suggests that the overall structure behaves as a double negative material. The wideband metamaterial structure with topological insulator material can also be compared with the interference mode theory. |
| format | Article |
| id | doaj-art-4758da3b056e4ce5ae7effa541cee188 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-4758da3b056e4ce5ae7effa541cee1882025-08-20T04:02:45ZengNature PortfolioScientific Reports2045-23222025-08-0115112110.1038/s41598-025-14623-7Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approachVishal Sorathiya0Zen A. Sbeah1Ahmad Alghamdi2Amar Y. Jaffar3Abdullah G. Alharbi4Faculty of Engineering and Technology, Parul Institute of Engineering and Technology, Parul UniversityFaculty of Engineering and Technology, Parul Institute of Engineering and Technology, Parul UniversityDepartment of Mechanical and Industrial Engineering, College of Engineering and Computing in Al-Qunfudhah, Umm al-Qura UniversityComputer and Network Engineering Department, College of Computing, Umm Al-Qura UniversityDepartment of Electrical Engineering, College of Engineering, Princess Nourah bint Abdulrahman UniversityAbstract This study utilises simulations to investigate the potential of a novel multi-layered topological insulator-based wideband absorber design. The proposed design is constructed with a multilayer structure that incorporates meticulously chosen materials to enhance light absorption. The top layer is composed of a metal (Fe/Ti/Cu/Zn/Ag/Au), which is followed by an insulating layer (Si/SiO₂/InP) and a topological insulator (Bi₁.₅Sb₀.₅Te₁.₈Se₁.₂). These layers are sandwiched between two metal layers (Fe/Ti/Cu/Zn/Ag/Au). The proposed structure is analysed for two different resonator-based designs, considering both the L-shaped metal resonator and the complementary L-shaped resonator for the overall computational analysis. The overall structure is computed for the broad range of the wavelength spectrum (0.2–1.6 μm). The proposed metamaterial design achieves an absorption rate of ~ 99% across multiple wavelength bands. This structure also investigated the different parametric values, such as physical dimensions and oblique angle of incident, to identify the optimised values of the different parameters. The metamaterial parameters, such as permittivity, permeability, refractive index, and impedance values, are also investigated over the entire wavelength spectrum, which suggests that the overall structure behaves as a double negative material. The wideband metamaterial structure with topological insulator material can also be compared with the interference mode theory.https://doi.org/10.1038/s41598-025-14623-7Solar cell absorberTopological insulator (TI)Wideband absorberMetamaterial absorbers |
| spellingShingle | Vishal Sorathiya Zen A. Sbeah Ahmad Alghamdi Amar Y. Jaffar Abdullah G. Alharbi Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach Scientific Reports Solar cell absorber Topological insulator (TI) Wideband absorber Metamaterial absorbers |
| title | Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach |
| title_full | Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach |
| title_fullStr | Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach |
| title_full_unstemmed | Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach |
| title_short | Wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum: a numerical approach |
| title_sort | wideband metamaterial perfect absorber using topological insulator material for infrared and visible light spectrum a numerical approach |
| topic | Solar cell absorber Topological insulator (TI) Wideband absorber Metamaterial absorbers |
| url | https://doi.org/10.1038/s41598-025-14623-7 |
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