Invisibility cloaking of a high-index dielectric cylinder via Fano resonances

M. V. Rybin, D. S. Filonov, K. B. Samusev

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We study the Mie scattering by high-index dielectric cylinders and reveal a cloaking mechanism associated with the resonant scattering spectra. The cloaking effect at any angle of observation originates from interference between a broadband radiation and narrow resonant Mie modes resulting in the Fano resonances. From the Fano formula it is clear that at the special frequency the numerator becomes zero and the scattering efficiency completely vanishes. The numerical calculations show that for a particular frequency the resonant Hz field near the boundary inside the high-index dielectric cylinders ideally mimics the incident field distribution and one observes a practically complete suppression of scattering. We verify the concept of Fano cloaking experimentally by monitoring the scattering by a water cylinder from visible to invisible regimes when its dielectric permittivity is changed by heating.

Original languageEnglish
Title of host publication2017 Progress in Electromagnetics Research Symposium - Spring, PIERS 2017
EditorsWeng Cho Chew, Sailing He, Sailing He
PublisherElectromagnetics Academy
Pages1494-1496
Number of pages3
ISBN (Electronic)9781509062690
DOIs
StatePublished - 2017
Externally publishedYes
Event2017 Progress In Electromagnetics Research Symposium - Spring, PIERS 2017 - St. Petersburg, Russian Federation
Duration: 22 May 201725 May 2017

Publication series

NameProgress in Electromagnetics Research Symposium
ISSN (Print)1559-9450
ISSN (Electronic)1931-7360

Conference

Conference2017 Progress In Electromagnetics Research Symposium - Spring, PIERS 2017
Country/TerritoryRussian Federation
CitySt. Petersburg
Period22/05/1725/05/17

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