Multiple and multipolar Fano resonances in plasmonic nanoring pentamers
The optical properties of plasmonic nanoring pentamers are experimentally and theoretically investigated in the near-infrared spectral region, where the nanoring metamolecules allow complex optical design by tuning a single geometrical parameter (the inner radius of the nanoring). Even in fully four...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/101767 http://hdl.handle.net/10220/19787 |
| _version_ | 1826117886929797120 |
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| author | Liu, Hailong Leong, Eunice Sok Ping Wang, Zilong Si, Guangyuan Zheng, Longjiang Liu, Yan Jun Soci, Cesare |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liu, Hailong Leong, Eunice Sok Ping Wang, Zilong Si, Guangyuan Zheng, Longjiang Liu, Yan Jun Soci, Cesare |
| author_sort | Liu, Hailong |
| collection | NTU |
| description | The optical properties of plasmonic nanoring pentamers are experimentally and theoretically investigated in the near-infrared spectral region, where the nanoring metamolecules allow complex optical design by tuning a single geometrical parameter (the inner radius of the nanoring). Even in fully four-fold symmetric nanoring pentamers, unconventional plasmonic coupling paths generate multiple Fano resonances which would not appear in symmetric nanodisc oligomers. In addition, inhomogeneous elementary units in the pentamer induce additional resonances due to high-order dark modes, while complete breaking of the four-fold symmetry results in sharp multipolar Fano resonances upon the hybridization of dark and bright modes. This approach demonstrates a simple way to engineer plasmonic couplings by subtle changes of uniform metamaterial design. |
| first_indexed | 2024-10-01T04:34:42Z |
| format | Journal Article |
| id | ntu-10356/101767 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:34:42Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1017672020-03-07T12:34:51Z Multiple and multipolar Fano resonances in plasmonic nanoring pentamers Liu, Hailong Leong, Eunice Sok Ping Wang, Zilong Si, Guangyuan Zheng, Longjiang Liu, Yan Jun Soci, Cesare School of Physical and Mathematical Sciences DRNTU::Engineering The optical properties of plasmonic nanoring pentamers are experimentally and theoretically investigated in the near-infrared spectral region, where the nanoring metamolecules allow complex optical design by tuning a single geometrical parameter (the inner radius of the nanoring). Even in fully four-fold symmetric nanoring pentamers, unconventional plasmonic coupling paths generate multiple Fano resonances which would not appear in symmetric nanodisc oligomers. In addition, inhomogeneous elementary units in the pentamer induce additional resonances due to high-order dark modes, while complete breaking of the four-fold symmetry results in sharp multipolar Fano resonances upon the hybridization of dark and bright modes. This approach demonstrates a simple way to engineer plasmonic couplings by subtle changes of uniform metamaterial design. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2014-06-16T03:43:52Z 2019-12-06T20:44:18Z 2014-06-16T03:43:52Z 2019-12-06T20:44:18Z 2013 2013 Journal Article Liu, H., Leong, E. S. P., Wang, Z., Si, G., Zheng, L., Liu, Y. J., et al. (2013). Multiple and Multipolar Fano Resonances in Plasmonic Nanoring Pentamers. Advanced Optical Materials, 1(12), 978-983. 2195-1071 https://hdl.handle.net/10356/101767 http://hdl.handle.net/10220/19787 10.1002/adom.201300393 en Advanced optical materials © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering Liu, Hailong Leong, Eunice Sok Ping Wang, Zilong Si, Guangyuan Zheng, Longjiang Liu, Yan Jun Soci, Cesare Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title | Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title_full | Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title_fullStr | Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title_full_unstemmed | Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title_short | Multiple and multipolar Fano resonances in plasmonic nanoring pentamers |
| title_sort | multiple and multipolar fano resonances in plasmonic nanoring pentamers |
| topic | DRNTU::Engineering |
| url | https://hdl.handle.net/10356/101767 http://hdl.handle.net/10220/19787 |
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