Split ring aperture for optical magnetic field enhancement by radially polarized beam
Inspired by Babinet’s principle, we proposed a new plasmonic structure for enhancing the optical magnetic field, i.e. split ring aperture, whose complement is the well-known split ring. The split ring aperture exhibits a much better performance under radially polarized excitation than linearly p...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/96531 http://hdl.handle.net/10220/9917 |
| _version_ | 1811681942021603328 |
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| author | Yang, Y. Dai, Haitao Sun, Xiaowei |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Yang, Y. Dai, Haitao Sun, Xiaowei |
| author_sort | Yang, Y. |
| collection | NTU |
| description | Inspired by Babinet’s principle, we proposed a new plasmonic
structure for enhancing the optical magnetic field, i.e. split ring aperture,
whose complement is the well-known split ring. The split ring aperture
exhibits a much better performance under radially polarized excitation than
linearly polarized excitation. We attribute the ultra-high intensity
enhancement in magnetic field to the symmetric matching between the
aperture geometry and the direction of the electric field vector in each
direction of radially excitation. The impact of the design parameters on the
intensity enhancement and resonant wavelength is also investigated in
details. |
| first_indexed | 2024-10-01T03:48:57Z |
| format | Journal Article |
| id | ntu-10356/96531 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:48:57Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/965312020-03-07T14:02:47Z Split ring aperture for optical magnetic field enhancement by radially polarized beam Yang, Y. Dai, Haitao Sun, Xiaowei School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Inspired by Babinet’s principle, we proposed a new plasmonic structure for enhancing the optical magnetic field, i.e. split ring aperture, whose complement is the well-known split ring. The split ring aperture exhibits a much better performance under radially polarized excitation than linearly polarized excitation. We attribute the ultra-high intensity enhancement in magnetic field to the symmetric matching between the aperture geometry and the direction of the electric field vector in each direction of radially excitation. The impact of the design parameters on the intensity enhancement and resonant wavelength is also investigated in details. Published version 2013-05-08T08:45:29Z 2019-12-06T19:31:56Z 2013-05-08T08:45:29Z 2019-12-06T19:31:56Z 2013 2013 Journal Article Yang, Y., Dai, H., & Sun, X. (2013). Split ring aperture for optical magnetic field enhancement by radially polarized beam. Optics Express, 21(6), 6845-6850. 1094-4087 https://hdl.handle.net/10356/96531 http://hdl.handle.net/10220/9917 10.1364/OE.21.006845 en Optics express © 2013 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: http://dx.doi.org/10.1364/OE.21.006845. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Yang, Y. Dai, Haitao Sun, Xiaowei Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title | Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title_full | Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title_fullStr | Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title_full_unstemmed | Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title_short | Split ring aperture for optical magnetic field enhancement by radially polarized beam |
| title_sort | split ring aperture for optical magnetic field enhancement by radially polarized beam |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| url | https://hdl.handle.net/10356/96531 http://hdl.handle.net/10220/9917 |
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