Aluminium nanoparticle-based ultra-wideband high-performance polarizer
The polarizer-based device industry is expanding quickly, requiring high-quality research on nanoscale wideband polarizers. Here, we investigated the possibility of utilizing Al dimer nanostructures on broad-band polarizers. Metals are always considered promising candidates for reflection-based pola...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-10-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024148712 |
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| author | Md. Shariful Islam Ahmed Zubair |
| author_facet | Md. Shariful Islam Ahmed Zubair |
| author_sort | Md. Shariful Islam |
| collection | DOAJ |
| description | The polarizer-based device industry is expanding quickly, requiring high-quality research on nanoscale wideband polarizers. Here, we investigated the possibility of utilizing Al dimer nanostructures on broad-band polarizers. Metals are always considered promising candidates for reflection-based polarizer development because of their high extinction ratio. This study proposes a novel nanoparticle polarizer comprised of semi-immersed Al nano-dimers with a 200 nm radius on a CaF2 substrate. Our proposed nano-dimer-based design demonstrated impressive polarization anisotropy in the near-infrared (NIR) and THz ranges than conventional wire-grid-based ones. This study includes calculating performance parameters for the extraction of the proposed polarizer, including insertion loss, extinction ratio (ER), Mueller matrix values, and polarization ellipse diagram. The finite-difference time-domain (FDTD) simulation-based results suggested obtaining more than 55 dB extinction ratio for the 0.2 to 9 THz range. In the THz region, simulation results suggest impressively better performance than conventional wire-grid polarizers. In THz frequency range, our proposed polarizer demonstrated its extinction ratio of up to 60 dB. The average extinction ratio and insertion loss over the 1–1665 μm wavelength were 29.01 dB and ∼1 dB, respectively. The idea of Al dimer and the insight gained from the results extracted from the rigorous simulation report suggested a great opportunity for developing micro-scale metallic wideband polarizers. |
| format | Article |
| id | doaj-art-4b03a75df4f04b93a89df56afd5e2eef |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-4b03a75df4f04b93a89df56afd5e2eef2024-11-12T05:19:19ZengElsevierHeliyon2405-84402024-10-011020e38840Aluminium nanoparticle-based ultra-wideband high-performance polarizerMd. Shariful Islam0Ahmed Zubair1Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1205, BangladeshCorresponding author.; Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1205, BangladeshThe polarizer-based device industry is expanding quickly, requiring high-quality research on nanoscale wideband polarizers. Here, we investigated the possibility of utilizing Al dimer nanostructures on broad-band polarizers. Metals are always considered promising candidates for reflection-based polarizer development because of their high extinction ratio. This study proposes a novel nanoparticle polarizer comprised of semi-immersed Al nano-dimers with a 200 nm radius on a CaF2 substrate. Our proposed nano-dimer-based design demonstrated impressive polarization anisotropy in the near-infrared (NIR) and THz ranges than conventional wire-grid-based ones. This study includes calculating performance parameters for the extraction of the proposed polarizer, including insertion loss, extinction ratio (ER), Mueller matrix values, and polarization ellipse diagram. The finite-difference time-domain (FDTD) simulation-based results suggested obtaining more than 55 dB extinction ratio for the 0.2 to 9 THz range. In the THz region, simulation results suggest impressively better performance than conventional wire-grid polarizers. In THz frequency range, our proposed polarizer demonstrated its extinction ratio of up to 60 dB. The average extinction ratio and insertion loss over the 1–1665 μm wavelength were 29.01 dB and ∼1 dB, respectively. The idea of Al dimer and the insight gained from the results extracted from the rigorous simulation report suggested a great opportunity for developing micro-scale metallic wideband polarizers.http://www.sciencedirect.com/science/article/pii/S2405844024148712Al nanoparticleReflectionInsertion lossExtinction ratioMueller matrixUltrabroadband polarizer |
| spellingShingle | Md. Shariful Islam Ahmed Zubair Aluminium nanoparticle-based ultra-wideband high-performance polarizer Heliyon Al nanoparticle Reflection Insertion loss Extinction ratio Mueller matrix Ultrabroadband polarizer |
| title | Aluminium nanoparticle-based ultra-wideband high-performance polarizer |
| title_full | Aluminium nanoparticle-based ultra-wideband high-performance polarizer |
| title_fullStr | Aluminium nanoparticle-based ultra-wideband high-performance polarizer |
| title_full_unstemmed | Aluminium nanoparticle-based ultra-wideband high-performance polarizer |
| title_short | Aluminium nanoparticle-based ultra-wideband high-performance polarizer |
| title_sort | aluminium nanoparticle based ultra wideband high performance polarizer |
| topic | Al nanoparticle Reflection Insertion loss Extinction ratio Mueller matrix Ultrabroadband polarizer |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024148712 |
| work_keys_str_mv | AT mdsharifulislam aluminiumnanoparticlebasedultrawidebandhighperformancepolarizer AT ahmedzubair aluminiumnanoparticlebasedultrawidebandhighperformancepolarizer |