High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experime...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Online Access: | https://hdl.handle.net/10356/83890 http://hdl.handle.net/10220/42855 |
| _version_ | 1811696434319196160 |
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| author | Gao, Zhen Gao, Fei Zhang, Baile |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Gao, Zhen Gao, Fei Zhang, Baile |
| author_sort | Gao, Zhen |
| collection | NTU |
| description | We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experiments, we directly observe these high-order spoof-LSPs modes at microwave frequencies. We also show that these higher-order spoof-LSPs modes exhibit larger frequency shifts caused by the local environmental refractive index change than the previously reported low-order spoof-LSPs modes. Hence the complementary MSS may find potential applications as plasmonic sensor in the microwave and terahertz frequencies. |
| first_indexed | 2024-10-01T07:39:18Z |
| format | Journal Article |
| id | ntu-10356/83890 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:39:18Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/838902023-02-28T19:38:38Z High-order spoof localized surface plasmons supported on a complementary metallic spiral structure Gao, Zhen Gao, Fei Zhang, Baile School of Physical and Mathematical Sciences Sub-wavelength Optics Metamaterials We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experiments, we directly observe these high-order spoof-LSPs modes at microwave frequencies. We also show that these higher-order spoof-LSPs modes exhibit larger frequency shifts caused by the local environmental refractive index change than the previously reported low-order spoof-LSPs modes. Hence the complementary MSS may find potential applications as plasmonic sensor in the microwave and terahertz frequencies. MOE (Min. of Education, S’pore) Published version 2017-07-13T07:53:49Z 2019-12-06T15:33:59Z 2017-07-13T07:53:49Z 2019-12-06T15:33:59Z 2016 Journal Article Gao, Z., Gao, F., & Zhang, B. (2016). High-order spoof localized surface plasmons supported on a complementary metallic spiral structure. Scientific Reports, 6, 24447-. 2045-2322 https://hdl.handle.net/10356/83890 http://hdl.handle.net/10220/42855 10.1038/srep24447 27079658 en Scientific Reports © 2016 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 5 p. application/pdf |
| spellingShingle | Sub-wavelength Optics Metamaterials Gao, Zhen Gao, Fei Zhang, Baile High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title | High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title_full | High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title_fullStr | High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title_full_unstemmed | High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title_short | High-order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| title_sort | high order spoof localized surface plasmons supported on a complementary metallic spiral structure |
| topic | Sub-wavelength Optics Metamaterials |
| url | https://hdl.handle.net/10356/83890 http://hdl.handle.net/10220/42855 |
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