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

114 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)

More information

10.1063/1.4757613

Cite this

@article{959429da3bdc47bea9d85acd54babb4f,

title = "Optical toroidal dipolar response by an asymmetric double-bar metamaterial",

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.",

author = "Dong, {Zheng Gao} and Jie Zhu and Junsuk Rho and Li, {Jia Qi} and Changgui Lu and Xiaobo Yin and X. Zhang",

year = "2012",

month = oct,

day = "1",

doi = "10.1063/1.4757613",

language = "English",

volume = "101",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "14",

}

TY - JOUR

T1 - Optical toroidal dipolar response by an asymmetric double-bar metamaterial

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 - http://www.scopus.com/inward/record.url?scp=84867533410&partnerID=8YFLogxK

U2 - 10.1063/1.4757613

DO - 10.1063/1.4757613

M3 - Journal article

SN - 0003-6951

VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 14

M1 - 144105

ER -

Optical toroidal dipolar response by an asymmetric double-bar metamaterial

Abstract

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this