TuD4.1 - HIGHER-ORDER TOPOLOGICAL PHOTONICS
Abstract
Abstract
We demonstrate topological photonic states in all-dielectric metasurfaces with distorted Kagome lattice. Topological edge states with angular to linear momentum locking and higher order corner states induced by topological bulk polarization are shown to be protected by the lattice symmetries and generalized chiral symmety.
TuD4.2 - MACHINE ACCELERATED NANO-TARGETED INHOMOGENOUS STRUCTURES
Abstract
Abstract
Machine learning accelerates metamaterial design. We utilize ANNs to inverse design reflection spectra for an array of silicon nanopillars, achieving a six order of magnitude simulation speedup. We provide a framework to rapidly evaluate and design optical metamaterial devices beyond what is currently possible using optimization methods.
TuD4.3 - UNIDIRECTIONAL LIGHT PROPAGATION IN NONRECIPROCAL PERIODIC STRUCTURES
Abstract
Abstract
ABSTRACT: We discuss possible applications of chiral photonic structures involving magnetic components and supporting the phenomenon of electromagnetic unidirectionality. In such periodic arrays, the wave propagating in forward direction has finite group velocity, while the backward propagating wave has vanishing group velocity and greatly enhanced amplitude.We discuss possible applications of chiral photonic structures involving magnetic components and supporting the phenomenon of electromagnetic unidirectionality. In such periodic arrays, the wave propagating in forward direction has finite group velocity, while the backward propagating wave has vanishing group velocity and greatly enhanced amplitude.
TuD4.4 - MODELING ASSISTED DESIGN FOR RF PHOTONICS
Abstract
Abstract
One of the key components in RF photonics is the electro-optic modulator. We will present how modeling has helped us explore various techniques for using nonlinear optical materials for modulators in ways that traditionally would have been impractical due to optical phase mismatch challenges.