Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics
Rationally constructed materials have enabled access to optical capabilities beyond nature’s limitations, thanks to advances made in both theory and experiment. These synthetic composites allow subwavelength confinement of electromagnetic energy and facilitate unparalleled control over different asp...
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| Format: | Article |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/01/e3sconf_icegc2024_00042.pdf |
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| author | El Badri Youssef Mangach Hicham Belkacem Abdelhaq Oubeniz Hammou Bouzid Abdenbi Achaoui Younes |
| author_facet | El Badri Youssef Mangach Hicham Belkacem Abdelhaq Oubeniz Hammou Bouzid Abdenbi Achaoui Younes |
| author_sort | El Badri Youssef |
| collection | DOAJ |
| description | Rationally constructed materials have enabled access to optical capabilities beyond nature’s limitations, thanks to advances made in both theory and experiment. These synthetic composites allow subwavelength confinement of electromagnetic energy and facilitate unparalleled control over different aspects of electromagnetic waves (polarization, amplitude, frequency, etc.). However, the diffraction phenomenon is severely hindering the efficacy and performance of dielectric photonic components. Diffraction causes the electromagnetic wave to spread and deviate from its intended path, thereby, making the collimated light beam scatter, leading to lower power density and inaccurate targeting. This is particularly detrimental for applications requiring precise control of high-frequency with shorter wavelengths. Herein, we report on the effect of anisotropic geometrical scaling of dielectric photonic crystals to alleviate the diffraction barrier along the Γ → X path of the irreducible Brillouin region. Thus, achieving the long-sought goal of high-frequency electromagnetic wave steering. We harness the full weight of modal and harmonic analysis based on the Finite Element Method to demonstrate that scaling the direction perpendicular to the wave’s propagation reduced by fourfold the diffraction limit from 100 THz to 400 THz. |
| format | Article |
| id | doaj-art-98fa83c75de549c182d241ed1a5c7734 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-98fa83c75de549c182d241ed1a5c77342025-02-05T10:46:25ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016010004210.1051/e3sconf/202560100042e3sconf_icegc2024_00042Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic PhotonicsEl Badri Youssef0Mangach Hicham1Belkacem Abdelhaq2Oubeniz Hammou3Bouzid Abdenbi4Achaoui Younes5Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityLaboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityLaboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityLaboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityLaboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityLaboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail UniversityRationally constructed materials have enabled access to optical capabilities beyond nature’s limitations, thanks to advances made in both theory and experiment. These synthetic composites allow subwavelength confinement of electromagnetic energy and facilitate unparalleled control over different aspects of electromagnetic waves (polarization, amplitude, frequency, etc.). However, the diffraction phenomenon is severely hindering the efficacy and performance of dielectric photonic components. Diffraction causes the electromagnetic wave to spread and deviate from its intended path, thereby, making the collimated light beam scatter, leading to lower power density and inaccurate targeting. This is particularly detrimental for applications requiring precise control of high-frequency with shorter wavelengths. Herein, we report on the effect of anisotropic geometrical scaling of dielectric photonic crystals to alleviate the diffraction barrier along the Γ → X path of the irreducible Brillouin region. Thus, achieving the long-sought goal of high-frequency electromagnetic wave steering. We harness the full weight of modal and harmonic analysis based on the Finite Element Method to demonstrate that scaling the direction perpendicular to the wave’s propagation reduced by fourfold the diffraction limit from 100 THz to 400 THz.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/01/e3sconf_icegc2024_00042.pdf |
| spellingShingle | El Badri Youssef Mangach Hicham Belkacem Abdelhaq Oubeniz Hammou Bouzid Abdenbi Achaoui Younes Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics E3S Web of Conferences |
| title | Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics |
| title_full | Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics |
| title_fullStr | Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics |
| title_full_unstemmed | Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics |
| title_short | Unidirectional Alleviation of the Diffraction Limit in Geometrically Anisotropic Photonics |
| title_sort | unidirectional alleviation of the diffraction limit in geometrically anisotropic photonics |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/01/e3sconf_icegc2024_00042.pdf |
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