Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures
The multipole interference (MPI) effect plays pivotal roles in the formation of electromagnetic responses in various settings. In the optics regime, it has been realized typically through the Mie resonance that necessitates high‐index, deep‐subwavelength‐scale dielectric resonators that are challeng...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-06-01
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| Series: | Advanced Photonics Research |
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| Online Access: | https://doi.org/10.1002/adpr.202400162 |
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| author | Rabiul Islam Sikder Myung Gi Ji Jaeyoun Kim |
| author_facet | Rabiul Islam Sikder Myung Gi Ji Jaeyoun Kim |
| author_sort | Rabiul Islam Sikder |
| collection | DOAJ |
| description | The multipole interference (MPI) effect plays pivotal roles in the formation of electromagnetic responses in various settings. In the optics regime, it has been realized typically through the Mie resonance that necessitates high‐index, deep‐subwavelength‐scale dielectric resonators that are challenging to fabricate. Herein, a new, diffraction‐based MPI scheme that can be realized with low‐index, mesoscale dielectric structures is demonstrated. It is verified that this “diffractive MPI” concept by realizing various MPI states using micrometric polymeric cuboids fabricated by soft‐lithography. Subsequent analyses reveal that the MPI states with a distinct near‐zero forward scattering (NZFS) characteristic played crucial roles in shaping the cuboid's transmission spectrum. A hitherto unreported NZFS state, which exhibits a unique, “trifolium” radiation pattern, is also identified. The spectral position of such NZFS states turns out to be strongly dependent on the cuboid's geometry. By combining these results, the diffractive NZFS formation is related to the important phenomena of induced transparency and structural color generation. |
| format | Article |
| id | doaj-art-8bc1d1bf6cba485b987c38e88fbd6e4f |
| institution | OA Journals |
| issn | 2699-9293 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Photonics Research |
| spelling | doaj-art-8bc1d1bf6cba485b987c38e88fbd6e4f2025-08-20T02:23:48ZengWiley-VCHAdvanced Photonics Research2699-92932025-06-0166n/an/a10.1002/adpr.202400162Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric StructuresRabiul Islam Sikder0Myung Gi Ji1Jaeyoun Kim2Department of Electrical and Computer Engineering Iowa State University Ames IA 50014 USADepartment of Electrical and Computer Engineering Iowa State University Ames IA 50014 USADepartment of Electrical and Computer Engineering Iowa State University Ames IA 50014 USAThe multipole interference (MPI) effect plays pivotal roles in the formation of electromagnetic responses in various settings. In the optics regime, it has been realized typically through the Mie resonance that necessitates high‐index, deep‐subwavelength‐scale dielectric resonators that are challenging to fabricate. Herein, a new, diffraction‐based MPI scheme that can be realized with low‐index, mesoscale dielectric structures is demonstrated. It is verified that this “diffractive MPI” concept by realizing various MPI states using micrometric polymeric cuboids fabricated by soft‐lithography. Subsequent analyses reveal that the MPI states with a distinct near‐zero forward scattering (NZFS) characteristic played crucial roles in shaping the cuboid's transmission spectrum. A hitherto unreported NZFS state, which exhibits a unique, “trifolium” radiation pattern, is also identified. The spectral position of such NZFS states turns out to be strongly dependent on the cuboid's geometry. By combining these results, the diffractive NZFS formation is related to the important phenomena of induced transparency and structural color generation.https://doi.org/10.1002/adpr.202400162anapole modecapillary force lithographymetamaterialsmultipolar decompositiontoroidal dipole |
| spellingShingle | Rabiul Islam Sikder Myung Gi Ji Jaeyoun Kim Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures Advanced Photonics Research anapole mode capillary force lithography metamaterials multipolar decomposition toroidal dipole |
| title | Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures |
| title_full | Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures |
| title_fullStr | Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures |
| title_full_unstemmed | Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures |
| title_short | Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures |
| title_sort | diffractive synthesis of multipole interference states using low index mesoscale dielectric structures |
| topic | anapole mode capillary force lithography metamaterials multipolar decomposition toroidal dipole |
| url | https://doi.org/10.1002/adpr.202400162 |
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