All-angle reflectionless negative refraction with ideal photonic Weyl metamaterials.

ABSTRACT: Negative refraction, an unnatural optical phenomenon in which the incident and the refracted waves reside on the same side of the surface normal, has been demonstrated with the invention of negative index media based on artificially engineered photonic structures called metamaterials. It has received wide attention due to its potential applications in imaging, nonlinear optics, and electromagnetic cloaking. However, it is highly challenging to realize negative refraction operating at all angles and with the perfect transmission. In this work, leveraging the recent development in topological photonics, we propose to realize reflectionless negative refraction for all incident angles with a topological metamaterial. The proposed metamaterial possesses two Weyl points of opposite topological c

SUBMITTER: Liu Y 

PROVIDER: S-EPMC9485223 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature