Spheres of maximum electromagnetic chirality
The search for objects that yield maximum electromagnetic chirality in their emitted wave field has gathered significant attention in recent years. However, achieving such maximum chirality is challenging, as it typically requires complex chiral metamaterials. Here, we demonstrate that chiral sphere...
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-11-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.043192 |
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| _version_ | 1850267957124399104 |
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| author | Jorge Olmos-Trigo Manuel Nieto-Vesperinas Gabriel Molina-Terriza |
| author_facet | Jorge Olmos-Trigo Manuel Nieto-Vesperinas Gabriel Molina-Terriza |
| author_sort | Jorge Olmos-Trigo |
| collection | DOAJ |
| description | The search for objects that yield maximum electromagnetic chirality in their emitted wave field has gathered significant attention in recent years. However, achieving such maximum chirality is challenging, as it typically requires complex chiral metamaterials. Here, we demonstrate that chiral spheres can yield maximum chirality in their emitted wave field. Specifically, we analytically find the spectral trajectories at which chiral spheres become optically transparent to a given helicity of the incident field, while for its opposite helicity, they behave as dual objects, i.e., on scattering, they preserve helicity. Since chiral spheres behave as dual objects at the first Kerker condition of zero backscattering, we significantly simplify this condition in terms of a Riccati-Bessel function. Our analytical findings suggest the creation of spherical building blocks for designing metasurfaces or metamaterials with maximum electromagnetic chirality properties. |
| format | Article |
| id | doaj-art-1f5dd04fe67b4290a4e03b53efe523b1 |
| institution | OA Journals |
| issn | 2643-1564 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-1f5dd04fe67b4290a4e03b53efe523b12025-08-20T01:53:35ZengAmerican Physical SocietyPhysical Review Research2643-15642024-11-016404319210.1103/PhysRevResearch.6.043192Spheres of maximum electromagnetic chiralityJorge Olmos-TrigoManuel Nieto-VesperinasGabriel Molina-TerrizaThe search for objects that yield maximum electromagnetic chirality in their emitted wave field has gathered significant attention in recent years. However, achieving such maximum chirality is challenging, as it typically requires complex chiral metamaterials. Here, we demonstrate that chiral spheres can yield maximum chirality in their emitted wave field. Specifically, we analytically find the spectral trajectories at which chiral spheres become optically transparent to a given helicity of the incident field, while for its opposite helicity, they behave as dual objects, i.e., on scattering, they preserve helicity. Since chiral spheres behave as dual objects at the first Kerker condition of zero backscattering, we significantly simplify this condition in terms of a Riccati-Bessel function. Our analytical findings suggest the creation of spherical building blocks for designing metasurfaces or metamaterials with maximum electromagnetic chirality properties.http://doi.org/10.1103/PhysRevResearch.6.043192 |
| spellingShingle | Jorge Olmos-Trigo Manuel Nieto-Vesperinas Gabriel Molina-Terriza Spheres of maximum electromagnetic chirality Physical Review Research |
| title | Spheres of maximum electromagnetic chirality |
| title_full | Spheres of maximum electromagnetic chirality |
| title_fullStr | Spheres of maximum electromagnetic chirality |
| title_full_unstemmed | Spheres of maximum electromagnetic chirality |
| title_short | Spheres of maximum electromagnetic chirality |
| title_sort | spheres of maximum electromagnetic chirality |
| url | http://doi.org/10.1103/PhysRevResearch.6.043192 |
| work_keys_str_mv | AT jorgeolmostrigo spheresofmaximumelectromagneticchirality AT manuelnietovesperinas spheresofmaximumelectromagneticchirality AT gabrielmolinaterriza spheresofmaximumelectromagneticchirality |