Asymmetric Scattering and Reciprocity in a Plasmonic Dimer
We study the scattering of polarized light by two equal corner stacked Au nanorods that exhibit strong electromagnetic coupling. In the far field, this plasmonic dimer manifests very prominent asymmetric scattering in the transverse direction. Calculations based on a system of two coupled oscillator...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/12/11/1790 |
| _version_ | 1797549466919632896 |
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| author | Mehmet Ali Kuntman Ertan Kuntman Oriol Arteaga |
| author_facet | Mehmet Ali Kuntman Ertan Kuntman Oriol Arteaga |
| author_sort | Mehmet Ali Kuntman |
| collection | DOAJ |
| description | We study the scattering of polarized light by two equal corner stacked Au nanorods that exhibit strong electromagnetic coupling. In the far field, this plasmonic dimer manifests very prominent asymmetric scattering in the transverse direction. Calculations based on a system of two coupled oscillators, as well as simulations based on the boundary element method, show that, while in one configuration both vertical and horizontal polarization states are scattered to the detector, when we interchange the source and the detector, the scattered intensity of the horizontal polarization drops to zero. Following Perrin’s criterion, it can be shown that this system, as well as any other linear system not involving magneto-optical effects, obeys the optical reciprocity principle. We show that the optical response of the plasmonic dimer, while preserving electromagnetic reciprocity, can be used for the non-reciprocal transfer of signals at a subwavelength scale. |
| first_indexed | 2024-03-10T15:16:04Z |
| format | Article |
| id | doaj.art-ab494c4c84c44079b1b4f098cca4be2c |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T15:16:04Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-ab494c4c84c44079b1b4f098cca4be2c2023-11-20T18:57:47ZengMDPI AGSymmetry2073-89942020-10-011211179010.3390/sym12111790Asymmetric Scattering and Reciprocity in a Plasmonic DimerMehmet Ali Kuntman0Ertan Kuntman1Oriol Arteaga2Independent Researcher, Baran Sitesi F-6, Ordu 52200, TurkeyDepartment Física Aplicada, Universitat de Barcelona, 08028 Barcelona, SpainDepartment Física Aplicada, Universitat de Barcelona, 08028 Barcelona, SpainWe study the scattering of polarized light by two equal corner stacked Au nanorods that exhibit strong electromagnetic coupling. In the far field, this plasmonic dimer manifests very prominent asymmetric scattering in the transverse direction. Calculations based on a system of two coupled oscillators, as well as simulations based on the boundary element method, show that, while in one configuration both vertical and horizontal polarization states are scattered to the detector, when we interchange the source and the detector, the scattered intensity of the horizontal polarization drops to zero. Following Perrin’s criterion, it can be shown that this system, as well as any other linear system not involving magneto-optical effects, obeys the optical reciprocity principle. We show that the optical response of the plasmonic dimer, while preserving electromagnetic reciprocity, can be used for the non-reciprocal transfer of signals at a subwavelength scale.https://www.mdpi.com/2073-8994/12/11/1790reciprocityplasmonicsasymmetric scatteringlinearity |
| spellingShingle | Mehmet Ali Kuntman Ertan Kuntman Oriol Arteaga Asymmetric Scattering and Reciprocity in a Plasmonic Dimer Symmetry reciprocity plasmonics asymmetric scattering linearity |
| title | Asymmetric Scattering and Reciprocity in a Plasmonic Dimer |
| title_full | Asymmetric Scattering and Reciprocity in a Plasmonic Dimer |
| title_fullStr | Asymmetric Scattering and Reciprocity in a Plasmonic Dimer |
| title_full_unstemmed | Asymmetric Scattering and Reciprocity in a Plasmonic Dimer |
| title_short | Asymmetric Scattering and Reciprocity in a Plasmonic Dimer |
| title_sort | asymmetric scattering and reciprocity in a plasmonic dimer |
| topic | reciprocity plasmonics asymmetric scattering linearity |
| url | https://www.mdpi.com/2073-8994/12/11/1790 |
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