Optimal arrangement of meta-atoms composing metamaterials
In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of meta-atoms are investigated. Each meta-atom (i.e. the unit element composing a metamaterial) in our study is an...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2012
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| Online Access: | https://hdl.handle.net/10356/94598 http://hdl.handle.net/10220/7809 |
| _version_ | 1811682389775089664 |
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| author | Fiddy, Michael A. Chuang, Yi-Chen Dudley, Richard |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Fiddy, Michael A. Chuang, Yi-Chen Dudley, Richard |
| author_sort | Fiddy, Michael A. |
| collection | NTU |
| description | In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of
meta-atoms are investigated. Each meta-atom (i.e. the unit element composing a metamaterial) in our study is an
asymmetric 3D “S”-shaped resonator. This structure radiates an enhanced scattered field at several possible resonant
frequencies, some of which are out of phase with the incident wave. We retrieve the effective parameters of different
metamaterials and discuss the role of meta-atom symmetries and dimensions in affecting the effective refractive index of
a metamaterial slab. Relative locations and orientations of individual meta-atoms are investigated to provide desired
properties with low loss despite the inevitable finite size of each meta-atom. The results presented provide insights for
designing superlenses, resonant antennas, and other potential applications. |
| first_indexed | 2024-10-01T03:56:04Z |
| format | Conference Paper |
| id | ntu-10356/94598 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:56:04Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/945982020-03-07T13:24:47Z Optimal arrangement of meta-atoms composing metamaterials Fiddy, Michael A. Chuang, Yi-Chen Dudley, Richard School of Electrical and Electronic Engineering Photonic and Phononic Properties of Engineered Nanostructures (2nd : 2012 : San Francisco, US) Department of Physics and Optical Science, Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte, USA DRNTU::Engineering::Electrical and electronic engineering In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of meta-atoms are investigated. Each meta-atom (i.e. the unit element composing a metamaterial) in our study is an asymmetric 3D “S”-shaped resonator. This structure radiates an enhanced scattered field at several possible resonant frequencies, some of which are out of phase with the incident wave. We retrieve the effective parameters of different metamaterials and discuss the role of meta-atom symmetries and dimensions in affecting the effective refractive index of a metamaterial slab. Relative locations and orientations of individual meta-atoms are investigated to provide desired properties with low loss despite the inevitable finite size of each meta-atom. The results presented provide insights for designing superlenses, resonant antennas, and other potential applications. Published version 2012-05-03T06:26:45Z 2019-12-06T18:58:59Z 2012-05-03T06:26:45Z 2019-12-06T18:58:59Z 2012 2012 Conference Paper Chuang, Y. C., Dudley, R., & Fiddy, M. A. (2012). Optimal arrangement of meta-atoms composing metamaterials. Proceedings of SPIE - Photonic and Phononic Properties of Engineered Nanostructures II, 82691D. https://hdl.handle.net/10356/94598 http://hdl.handle.net/10220/7809 10.1117/12.906331 en © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - Photonic and Phononic Properties of Engineered Nanostructures II and is made available as an electronic reprint (preprint) with permission of SPIE. The paper can be found at DOI: [http://dx.doi.org/10.1117/12.906331]. 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. 7 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Fiddy, Michael A. Chuang, Yi-Chen Dudley, Richard Optimal arrangement of meta-atoms composing metamaterials |
| title | Optimal arrangement of meta-atoms composing metamaterials |
| title_full | Optimal arrangement of meta-atoms composing metamaterials |
| title_fullStr | Optimal arrangement of meta-atoms composing metamaterials |
| title_full_unstemmed | Optimal arrangement of meta-atoms composing metamaterials |
| title_short | Optimal arrangement of meta-atoms composing metamaterials |
| title_sort | optimal arrangement of meta atoms composing metamaterials |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/94598 http://hdl.handle.net/10220/7809 |
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