Anapole state revealed by cloaking metallic cylinders with split ring resonators

Autor: Valiyaveettil Pushpakaran Sarin, Giuseppe Labate, Puthiyapurayil Viswanathan Vinesh, Manoj Mani, Pezholil Mohanan, Vasudevan Kesavath
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-023-43917-x
Popis: Abstract This paper proposes the experimental demonstration of an anapole-based cylindrical electromagnetic cloaking scheme. An anapole state is excited by arranging around a cylindrical metallic target vertical split-ring resonators, forming an equivalent surface admittance boundary condition able to suppress the scattering. Using Mie formalism and multipole scattering theory, we identify the actual reason behind the cloaking operation, characterizing the anapole condition by the scattering contributions from toroidal and electric dipole moments. Numerical results are verified using full-wave simulation softwares and subsequently validated with back-scattering measurements inside an anechoic chamber.
Databáze: Directory of Open Access Journals
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