Optical toroidal dipolar response by an asymmetric double-bar metamaterial

Zheng Gao Dong; Jie Zhu; Junsuk Rho; Jia Qi Li; Changgui Lu; Xiaobo Yin; X. Zhang

doi:10.1063/1.4757613

Optical toroidal dipolar response by an asymmetric double-bar metamaterial

Zheng Gao Dong
, Jie Zhu
, Junsuk Rho
, Jia Qi Li
, Changgui Lu
, Xiaobo Yin
, X. Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

117 Citations (Scopus)

Abstract

We demonstrate that the toroidal dipolar response can be realized in the optical regime by designing a feasible nanostructured metamaterial, comprising asymmetric double-bar magnetic resonators assembled into a toroid-like configuration. It is confirmed numerically that an optical toroidal dipolar moment dominates over other moments. This response is characterized by a strong confinement of an E-field component at the toroid center, oriented perpendicular to the H-vortex plane. The resonance-enhanced optical toroidal response can provide an experimental avenue for various interesting optical phenomena associated with the elusive toroidal moment.

Original language	English
Article number	144105
Journal	Applied Physics Letters
Volume	101
Issue number	14
DOIs	https://doi.org/10.1063/1.4757613
Publication status	Published - 1 Oct 2012
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4757613

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abstract = "We demonstrate that the toroidal dipolar response can be realized in the optical regime by designing a feasible nanostructured metamaterial, comprising asymmetric double-bar magnetic resonators assembled into a toroid-like configuration. It is confirmed numerically that an optical toroidal dipolar moment dominates over other moments. This response is characterized by a strong confinement of an E-field component at the toroid center, oriented perpendicular to the H-vortex plane. The resonance-enhanced optical toroidal response can provide an experimental avenue for various interesting optical phenomena associated with the elusive toroidal moment.",

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AU - Dong, Zheng Gao

AU - Zhu, Jie

AU - Rho, Junsuk

AU - Li, Jia Qi

AU - Lu, Changgui

AU - Yin, Xiaobo

AU - Zhang, X.

PY - 2012/10/1

Y1 - 2012/10/1

N2 - We demonstrate that the toroidal dipolar response can be realized in the optical regime by designing a feasible nanostructured metamaterial, comprising asymmetric double-bar magnetic resonators assembled into a toroid-like configuration. It is confirmed numerically that an optical toroidal dipolar moment dominates over other moments. This response is characterized by a strong confinement of an E-field component at the toroid center, oriented perpendicular to the H-vortex plane. The resonance-enhanced optical toroidal response can provide an experimental avenue for various interesting optical phenomena associated with the elusive toroidal moment.

AB - We demonstrate that the toroidal dipolar response can be realized in the optical regime by designing a feasible nanostructured metamaterial, comprising asymmetric double-bar magnetic resonators assembled into a toroid-like configuration. It is confirmed numerically that an optical toroidal dipolar moment dominates over other moments. This response is characterized by a strong confinement of an E-field component at the toroid center, oriented perpendicular to the H-vortex plane. The resonance-enhanced optical toroidal response can provide an experimental avenue for various interesting optical phenomena associated with the elusive toroidal moment.

UR - https://www.scopus.com/pages/publications/84867533410

U2 - 10.1063/1.4757613

DO - 10.1063/1.4757613

M3 - Journal article

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VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Optical toroidal dipolar response by an asymmetric double-bar metamaterial

Abstract

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