Work

Generation of giant electromagnetic fields using all-dielectric nanoresonators

Year: 2026

Type: article

Abstract: We derive the electromagnetic medium equivalent to a cluster of all-dielectric nanoparticles (i.e. enjoying high refractive indices), distributed in a smooth domain $$\Omega $$ Ω , while excited at nearly resonating dielectric incident frequencies (i.e. subwavelength Mie-resonant frequencies). This effective medium is an alteration of the permeability that keeps the permittivity unchanged. We provide regimes under which the effective permeability can be positive or negative valued. In addition, if the incident frequency is close to any of the subwavelength all-dielectric resonances, then the distributed cluster behaves as an extended quasi-static plasmonic resonator. Therefore, exciting the cluster of all-dielectric nanoresonators with nearly resonating incident frequencies, we can generate an extended quasi-static plasmonic resonator which creates giant electromagnetic fields in its surrounding.

Source: Mathematische Annalen

DOI: 10.1007/s00208-026-03480-y

Authors: Xinlin Cao, Ahcene Ghandriche, Mourad Sini

Institutions: Hong Kong Polytechnic University, Austrian Academy of Sciences, Johann Radon Institute for Computational and Applied Mathematics

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,190

Funders: National Natural Science Foundation of China, Austrian Science Fund, Hong Kong Polytechnic University