Optical Characteristics of Metasurfaces at Meta-Atom Anapole

Kang Du; Pei Li; Qiwei Miao; Kun Gao; Heng Wang; Lixun Sun; Wending Zhang; Ting Mei

doi:10.1109/JPHOT.2021.3072100

IEEE Photonics Journal (Jan 2021)

Optical Characteristics of Metasurfaces at Meta-Atom Anapole

Kang Du,
Pei Li,
Qiwei Miao,
Kun Gao,
Heng Wang,
Lixun Sun,
Wending Zhang,
Ting Mei

Affiliations

Kang Du: ORCiD; Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Pei Li: Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Qiwei Miao: Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Kun Gao: Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Heng Wang: Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Lixun Sun: Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Wending Zhang: ORCiD; Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China
Ting Mei: ORCiD; Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, China

DOI: https://doi.org/10.1109/JPHOT.2021.3072100
Journal volume & issue: Vol. 13, no. 3
pp. 1 – 7

Abstract

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Optical characteristics of square-latticed metasurfaces are analyzed by equations derived from a dipole-quadrupole system. For the metasurface composed of Si nanospheres, meta-atoms maintain the anapole characteristics of the single scatterer, which are not affected by the lattice period. The far-field response of the metasurface thus can be engineered without significantly disturbing near-fields in meta-atoms. In addition, as exhibited with Ag/Si core–shell nanospheres, the transmittance of metasurface at anapole can also be modulated and even nulled by shifting the lattice magnetic dipole and quadrupole resonances. In a small-period metasurface, the near-field interaction of adjacent meta-atoms manipulates the lattice resonance behavior, leading to significant modulation in transmittance at anapole.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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