bilevel-inverse-design-of-optical-switch

Code for Inverse Design of Optical Switch Based on Bilevel Optimization Inspired by Meta-Learning.

This repository contains two Colab notebooks, demonstrating two compact designs of 1-to-3 optical switch respectively with:

1. two small disk regions tunable, where the dielectric can be significantly varied
2. the whole design regions tunable, where the dielectric can be varied only a little

The Maxwell equation solver is based on finite-difference frequency-domain provided by Ceviche. To understand the design workflow, this workshop on inverse design may be helpful.