Exploring localized ENZ resonances and their role in superscattering, wideband invisibility, and tunable scattering.

ABSTRACT: While the role and manifestations of the localized surface plasmon resonances (LSPRs) in anomalous scattering, like superscattering and invisibility, are quite well explored, the existence, appearance, and possible contribution of localized epsilon-near-zero (ENZ) resonances still invoke careful exploration. In this paper, that is done along with a comparison of the resonances of two types in the case of thin-wall cylinders made of lossy and loss-compensated dispersive materials. It is shown that the localized ENZ resonances exist and appear very close to the zero-permittivity regime, i.e., at near-zero but yet negative permittivity that is similar to the ENZ modes in thin planar films. Near- and far-field characteristics of the superscattering modes are investigated. The results indicate

SUBMITTER: Serebryannikov AE 

PROVIDER: S-EPMC10796346 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature