Non-Radiating Electric Source Based on Anapole State

authored by
E. Zanganeh, A. Evlyukhin, A. Miroshnichenko, P. Kapitanova
Abstract

The existence of non-radiating sources with high reduction of far-field radiation and accumulation of electromagnetic field in the near-field zone is crucial for various branches of science from medical imaging to dark matter. Here a non-radiating electric source consisted of an ultra-high permittivity dielectric hollow disk excited by an electric point-like dipole antenna placed inside the disk is studied. We theoretically demonstrate that such a system supports anapole state with radiation suppression to the far-field. The radiation suppression is obtained by destructive interference between the point-like dipole antenna's radiation and the hollow disk's induced current.

Organisation(s)
Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
External Organisation(s)
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
Moscow Institute of Physics and Technology
University of New South Wales (UNSW)
Type
Conference contribution
Pages
469-471
No. of pages
3
Publication date
20.09.2021
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Atomic and Molecular Physics, and Optics, Radiation, Surfaces and Interfaces
Electronic version(s)
https://doi.org/10.1109/Metamaterials52332.2021.9577196 (Access: Closed)