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arXiv · 2405.03930

Shape optimization for high efficiency metasurfaces: theory and implementation

P. Dainese·L. Marra·D. Cassara·A. Portes·J. Oh·J. Yang·A. Palmieri·J. R. Rodrigues·A. H. Dorrah·F. Capasso
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Abstract

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. The proposed method provides a path towards manufacturability of inverse-designed high efficiency metasurfaces.

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P. Dainese, L. Marra, D. Cassara, A. Portes, J. Oh, J. Yang, A. Palmieri, J. R. Rodrigues, A. H. Dorrah, F. Capasso. 2024-05-07. Shape optimization for high efficiency metasurfaces: theory and implementation. https://arxiv.org/abs/2405.03930

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