Work

Analogue of electromagnetically-induced transparency by toroidal dipole in a symmetry-breaking metamaterial

Year: 2024

Type: article

Abstract: Analogue of electromagnetically-induced transparency (EIT) in metamaterials was typically based on the destructive interference between electric and magnetic dipolar resonances. In this work, a dipolar toroidal response is demonstrated by a plasmonic metamaterial composed of a ring and a disk. We theoretically demonstrate that the toroidal dipole can couple with the magnetic dipolar response (subradiant mode) and thus induce the EIT-like phenomenon by breaking the geometrical symmetry of the considered metamaterial. The result also shows a promising potential for applications of high-sensitivity resonant transmission associated with the intriguing toroidal moment.

Source: Optical Materials Express

DOI: 10.1364/ome.541086

Authors: Jian Shao, Jie Li, Dongdong Liu, Zhe Shi, Wenbin Gong

Institution: Nanjing University of Posts and Telecommunications

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,843

Funders: Natural Science Foundation of Jiangsu Province, Natural Science Research of Jiangsu Higher Education Institutions of China