Complex non-local behavior makes designing high efficiency and multifunctional metasurfaces a significant challenge. While using libraries of meta-atoms provide a simple and fast implementation methodology, pillar to pillar interaction often imposes performance limitations. On the other extreme, inverse design based on topology optimization leverages non-local coupling to achieve high efficiency, but leads to complex and difficult to fabricate structures. In this paper, we demonstrate numerically and experimentally a shape optimization method that enables high efficiency metasurfaces while providing direct control of the structure complexity through a Fourier decomposition of the surface gradient. The proposed method provides a path towards manufacturability of inverse-designed high efficiency metasurfaces.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519467PMC
http://dx.doi.org/10.1038/s41377-024-01629-5DOI Listing

Publication Analysis

Top Keywords

high efficiency
20
efficiency metasurfaces
12
shape optimization
8
high
5
efficiency
5
optimization high
4
metasurfaces
4
metasurfaces theory
4
theory implementation
4
implementation complex
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!