Inverse design of arbitrary optical helicity patterns
arXiv:2211.15295 · doi:10.1103/PhysRevResearch.5.033076
Abstract
Superposing multiple plane waves can generate helicity lattices in which the optical helicity varies regularly in space. Here we propose an inverse design method for constructing arbitrary helicity structures based on placing a digital object of dielectric inclusions in three-dimensional space. We apply the method to design structures that reproduce two-dimensional lattices embedded within a three-dimensional region using only a single plane wave as an input. In order to demonstrate the power and flexibility of our method, we go beyond the paradigm of a regular lattice and propose structures that can create arbitrary images consisting of regions of varying helicity, again using only a single plane wave as an input.
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