Nonreciprocal transparency in asymmetric gyrotropic trimers

Jin Wang; Ya Jie Liu; Hui Yuan Dong; Zheng Gao Dong; Kin Hung Fung

doi:10.1103/PhysRevResearch.4.013147

Nonreciprocal transparency in asymmetric gyrotropic trimers

Jin Wang, Ya Jie Liu, Hui Yuan Dong, Zheng Gao Dong, Kin Hung Fung

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

4 Citations (Scopus)

Abstract

We demonstrate theoretically an extreme scattering nonreciprocity, namely nonreciprocal transparency, in an asymmetric aggregate of deep-subwavelength gyrotropic trimer rods. By examining the asymmetric characteristics indicated in the differential extinction efficiency spectra, we explicitly reveal the underlying mechanism of such pronounced scattering nonreciprocity, arising from the asymmetrical magnetoelectric cross interactions besides the simultaneous excitations of the rotating magnetic dipole and electric dipole at each rod. Further, both far-field and near-field distributions are also investigated to validate our finding through full-wave numerical simulations. It may shed new light on the field of optics and photonics related to the nonreciprocal scattering on particle clusters.

Original language	English
Article number	013147
Journal	Physical Review Research
Volume	4
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevResearch.4.013147
Publication status	Published - 1 Mar 2022

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevResearch.4.013147

http://hdl.handle.net/10397/99617

Cite this

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title = "Nonreciprocal transparency in asymmetric gyrotropic trimers",

abstract = "We demonstrate theoretically an extreme scattering nonreciprocity, namely nonreciprocal transparency, in an asymmetric aggregate of deep-subwavelength gyrotropic trimer rods. By examining the asymmetric characteristics indicated in the differential extinction efficiency spectra, we explicitly reveal the underlying mechanism of such pronounced scattering nonreciprocity, arising from the asymmetrical magnetoelectric cross interactions besides the simultaneous excitations of the rotating magnetic dipole and electric dipole at each rod. Further, both far-field and near-field distributions are also investigated to validate our finding through full-wave numerical simulations. It may shed new light on the field of optics and photonics related to the nonreciprocal scattering on particle clusters.",

author = "Jin Wang and Liu, {Ya Jie} and Dong, {Hui Yuan} and Dong, {Zheng Gao} and Fung, {Kin Hung}",

note = "Funding Information: This work was supported by the Natural Science Foundation of Jiangsu Province (Grant No. BK20181263), the Hong Kong Research Grants Council (Grants No. C6013-18G and No. AoE/P-502/20) and the National Natural Science Foundation of China (Grant No. 11774053, 12174052). Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

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AU - Wang, Jin

AU - Liu, Ya Jie

AU - Dong, Hui Yuan

AU - Dong, Zheng Gao

AU - Fung, Kin Hung

N1 - Funding Information: This work was supported by the Natural Science Foundation of Jiangsu Province (Grant No. BK20181263), the Hong Kong Research Grants Council (Grants No. C6013-18G and No. AoE/P-502/20) and the National Natural Science Foundation of China (Grant No. 11774053, 12174052). Publisher Copyright: © 2022 authors. Published by the American Physical Society.

PY - 2022/3/1

Y1 - 2022/3/1

N2 - We demonstrate theoretically an extreme scattering nonreciprocity, namely nonreciprocal transparency, in an asymmetric aggregate of deep-subwavelength gyrotropic trimer rods. By examining the asymmetric characteristics indicated in the differential extinction efficiency spectra, we explicitly reveal the underlying mechanism of such pronounced scattering nonreciprocity, arising from the asymmetrical magnetoelectric cross interactions besides the simultaneous excitations of the rotating magnetic dipole and electric dipole at each rod. Further, both far-field and near-field distributions are also investigated to validate our finding through full-wave numerical simulations. It may shed new light on the field of optics and photonics related to the nonreciprocal scattering on particle clusters.

AB - We demonstrate theoretically an extreme scattering nonreciprocity, namely nonreciprocal transparency, in an asymmetric aggregate of deep-subwavelength gyrotropic trimer rods. By examining the asymmetric characteristics indicated in the differential extinction efficiency spectra, we explicitly reveal the underlying mechanism of such pronounced scattering nonreciprocity, arising from the asymmetrical magnetoelectric cross interactions besides the simultaneous excitations of the rotating magnetic dipole and electric dipole at each rod. Further, both far-field and near-field distributions are also investigated to validate our finding through full-wave numerical simulations. It may shed new light on the field of optics and photonics related to the nonreciprocal scattering on particle clusters.

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Nonreciprocal transparency in asymmetric gyrotropic trimers

Abstract

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