Observation of photonic Jackiw-Rebbi states in chains of all-dielectric bianisotropic particles

Abstract

In this paper we study theoretically and experimentally chains of all-dielectric bianisotropic particles. We show that photonic analogues of Jackiw-Rebbi states emerge at the interface between the domains with the opposite sign of bianisotropy parameter. Using near-field measurements, we perform proof-of-principle experimental demonstration of the interface states and reveal field localization at the domain wall in microwave frequency range.