Hybrid Anapole States as a Platform for Novel Optical Devices

In this Doctoral Thesis, previously unstudied metasurfaces consisting of silicon particles in a hybrid anapole state were investigated. It was shown that ultra-weak interaction with the environment naturally leads to unit transmittance without optical phase change. The optical properties of these structures were studied, and how the parameters of the metasurface can be adjusted to preserve its optical properties. Additionally, a method for controlling the optical signal passing through such a structure was demonstrated. For the first time, an anapole state was obtained for particles in the shape of a truncated cone, and the dependence of the anapole state on the conicity was studied.