Two-level optimizer for large-scale metasurfaces with strong near-field coupling
Abstract
We introduce a two-level window-based optimization architecture that enables the inverse-design of metasurfaces containing hundreds of adjustable parameters while accurately modeling near-field coupling effects. Our method contains two nested iterative optimizers and effectively optimizes a 300 unit-cell metalens (aperture diameter of 108 µm) and yields a 73.2% increase in focusing intensity, addressing the established fabrication-performance tradeoff for low aspect-ratio (
Fields of Study & Subjects
Metamaterials and Metasurfaces Applications
Advanced Antenna and Metasurface Technologies
Energy Harvesting in Wireless Networks
Publication details
- Journal / source
- Optics Express
- Volume
- 34
- Issue
- 2
- Pages
- 1602–1602
- Publication date
- 5 January 2026
- Language
- EN