Spoof plasmonics : from metamaterial concept to topological description
Advances in metamaterials have offered the opportunity of engineering electromagnetic properties beyond the limits of natural materials. A typical example is "spoof" surface plasmon polaritons (SPPs), which mimic features of SPPs without penetrating into metal, but only with periodic corru...
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sg-ntu-dr.10356-1387632020-05-12T08:09:36Z Spoof plasmonics : from metamaterial concept to topological description Gao, Zhen Wu, Lin Gao, Fei Luo, Yu Zhang, Baile School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies Science::Physics Band Gap Metamaterials Advances in metamaterials have offered the opportunity of engineering electromagnetic properties beyond the limits of natural materials. A typical example is "spoof" surface plasmon polaritons (SPPs), which mimic features of SPPs without penetrating into metal, but only with periodic corrugations on metal surfaces. They hold considerable promise in device applications from microwaves to the far infrared, where real SPP modes do not exist. The original spoof SPP concept is derived from the description of corrugated surfaces by a metamaterial that hosts an effective plasma frequency. Later, studies have attempted to describe spoof SPP modes with the band structure by strictly solving Maxwell's equations, which can possess band gaps from polaritonic anticrossing principle or Bragg interference. More recently, as inspired by the development of topological framework in condensed matter physics, the topological description of spoof SPPs is used to propose topologically protected waveguiding phenomena. Here, the developments of spoof SPPs from both practical and fundamental perspectives are reviewed. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2020-05-12T08:09:35Z 2020-05-12T08:09:35Z 2018 Journal Article Gao, Z., Wu, L., Gao, F., Luo, Y., & Zhang, B. (2018). Spoof plasmonics : from metamaterial concept to topological description. Advanced Materials, 30(31), 1706683-. doi:10.1002/adma.201706683 0935-9648 https://hdl.handle.net/10356/138763 10.1002/adma.201706683 29782662 2-s2.0-85047510830 31 30 en Advanced Materials © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
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Science::Physics Band Gap Metamaterials Gao, Zhen Wu, Lin Gao, Fei Luo, Yu Zhang, Baile Spoof plasmonics : from metamaterial concept to topological description |
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Advances in metamaterials have offered the opportunity of engineering electromagnetic properties beyond the limits of natural materials. A typical example is "spoof" surface plasmon polaritons (SPPs), which mimic features of SPPs without penetrating into metal, but only with periodic corrugations on metal surfaces. They hold considerable promise in device applications from microwaves to the far infrared, where real SPP modes do not exist. The original spoof SPP concept is derived from the description of corrugated surfaces by a metamaterial that hosts an effective plasma frequency. Later, studies have attempted to describe spoof SPP modes with the band structure by strictly solving Maxwell's equations, which can possess band gaps from polaritonic anticrossing principle or Bragg interference. More recently, as inspired by the development of topological framework in condensed matter physics, the topological description of spoof SPPs is used to propose topologically protected waveguiding phenomena. Here, the developments of spoof SPPs from both practical and fundamental perspectives are reviewed. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Gao, Zhen Wu, Lin Gao, Fei Luo, Yu Zhang, Baile |
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Article |
author |
Gao, Zhen Wu, Lin Gao, Fei Luo, Yu Zhang, Baile |
author_sort |
Gao, Zhen |
title |
Spoof plasmonics : from metamaterial concept to topological description |
title_short |
Spoof plasmonics : from metamaterial concept to topological description |
title_full |
Spoof plasmonics : from metamaterial concept to topological description |
title_fullStr |
Spoof plasmonics : from metamaterial concept to topological description |
title_full_unstemmed |
Spoof plasmonics : from metamaterial concept to topological description |
title_sort |
spoof plasmonics : from metamaterial concept to topological description |
publishDate |
2020 |
url |
https://hdl.handle.net/10356/138763 |
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1681058808070144000 |