Anapole Meta-Atoms

Nonradiating Electric and Magnetic Sources

verfasst von

Esmaeel Zanganeh, Andrey Evlyukhin, Andrey Miroshnichenko, Mingzhao Song, Elizaveta Nenasheva, Polina Kapitanova

Abstract

The existence of classical nonradiating electromagnetic sources is one of the puzzling questions to date. Here, we investigate radiation properties of physical systems composed of a single ultrahigh permittivity dielectric hollow disk excited by electric or magnetic pointlike dipole antennas, placed inside the inner bore. Using analytical and numerical methods, we demonstrate that such systems can support anapole states with total suppression of far-field radiation and thereby exhibit the properties of electric or magnetic nonradiating sources. It is shown that the suppression of the far-field radiated power is a result of the destructive interference between radiative contributions of the pointlike dipole antennas and the corresponding induced dipole moments of the hollow disk. The experimental investigation of the nonradiating electric source has been performed to confirm our theoretical predictions. Our results pave the way to create and realize compact nonradiative sources for applications in modern wireless power transfer systems, sensors, RFID tags, and medical technologies.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
Moscow Institute of Physics and Technology
University of New South Wales (UNSW)
Harbin Engineering University
Ceramics Co. Ltd

Typ

Artikel

Journal

Physical review letters

Band

127

ISSN

0031-9007

Publikationsdatum

27.08.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.1103/physrevlett.127.096804 (Zugang: Geschlossen)