Tailoring the multipoles in THz toroidal metamaterials
The multipoles play a significant role in determining the resonant behavior of subwavelength resonators that form the basis of metamaterial and plasmonic systems. Here, we study the impact of multipoles including toroidal dipole on the resonance intensity and linewidth of the fundamental inductive-c...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2017
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| Online Access: | https://hdl.handle.net/10356/85577 http://hdl.handle.net/10220/43767 |
| _version_ | 1811688961732509696 |
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| author | Cong, Longqing Srivastava, Yogesh Kumar Singh, Ranjan |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Cong, Longqing Srivastava, Yogesh Kumar Singh, Ranjan |
| author_sort | Cong, Longqing |
| collection | NTU |
| description | The multipoles play a significant role in determining the resonant behavior of subwavelength resonators that form the basis of metamaterial and plasmonic systems. Here, we study the impact of multipoles including toroidal dipole on the resonance intensity and linewidth of the fundamental inductive-capacitance (LC) resonance of a metamaterial array. The dominant multipoles that strongly contribute to the resonances are tailored by spatial rearrangement of the neighboring resonators such that the mutual interactions between the magnetic, electric, and toroidal configurations lead to enormous change in the linewidth as well as the resonance intensity of the LC mode. Manipulation of the multipoles in a metamaterial array provides a general strategy for the optimization of the quality factor of metamaterial resonances, which is fundamental to its applications in broad areas of sensing, lasing and nonlinear optics where stronger field confinement plays a significant role. |
| first_indexed | 2024-10-01T05:40:32Z |
| format | Journal Article |
| id | ntu-10356/85577 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:40:32Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/855772023-02-28T19:26:16Z Tailoring the multipoles in THz toroidal metamaterials Cong, Longqing Srivastava, Yogesh Kumar Singh, Ranjan School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) The Photonics Institute Metamaterials Electronic devices The multipoles play a significant role in determining the resonant behavior of subwavelength resonators that form the basis of metamaterial and plasmonic systems. Here, we study the impact of multipoles including toroidal dipole on the resonance intensity and linewidth of the fundamental inductive-capacitance (LC) resonance of a metamaterial array. The dominant multipoles that strongly contribute to the resonances are tailored by spatial rearrangement of the neighboring resonators such that the mutual interactions between the magnetic, electric, and toroidal configurations lead to enormous change in the linewidth as well as the resonance intensity of the LC mode. Manipulation of the multipoles in a metamaterial array provides a general strategy for the optimization of the quality factor of metamaterial resonances, which is fundamental to its applications in broad areas of sensing, lasing and nonlinear optics where stronger field confinement plays a significant role. MOE (Min. of Education, S’pore) Published version 2017-09-19T07:22:19Z 2019-12-06T16:06:25Z 2017-09-19T07:22:19Z 2019-12-06T16:06:25Z 2017 Journal Article Cong, L., Srivastava, Y. K., & Singh, R. (2017). Tailoring the multipoles in THz toroidal metamaterials. Applied Physics Letters, 111(8), 081108-. 0003-6951 https://hdl.handle.net/10356/85577 http://hdl.handle.net/10220/43767 10.1063/1.4993670 en Applied Physics Letters © 2017 American Institute of Physics (AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4993670]. 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. 5 p. application/pdf |
| spellingShingle | Metamaterials Electronic devices Cong, Longqing Srivastava, Yogesh Kumar Singh, Ranjan Tailoring the multipoles in THz toroidal metamaterials |
| title | Tailoring the multipoles in THz toroidal metamaterials |
| title_full | Tailoring the multipoles in THz toroidal metamaterials |
| title_fullStr | Tailoring the multipoles in THz toroidal metamaterials |
| title_full_unstemmed | Tailoring the multipoles in THz toroidal metamaterials |
| title_short | Tailoring the multipoles in THz toroidal metamaterials |
| title_sort | tailoring the multipoles in thz toroidal metamaterials |
| topic | Metamaterials Electronic devices |
| url | https://hdl.handle.net/10356/85577 http://hdl.handle.net/10220/43767 |
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