Shape optimization for high efficiency metasurfaces: theory and implementation

IF 3.5 3区医学 Q2 CHEMISTRY, MEDICINAL

ACS Medicinal Chemistry Letters Pub Date : 2024-10-29 DOI:10.1038/s41377-024-01629-5

Paulo Dainese, Louis Marra, Davide Cassara, Ary Portes, Jaewon Oh, Jun Yang, Alfonso Palmieri, Janderson Rocha Rodrigues, Ahmed H. Dorrah, Federico Capasso

引用次数: 0

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 through a Fourier decomposition of the surface gradient. The proposed method provides a path towards manufacturability of inverse-designed high efficiency metasurfaces.

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高效超表面的形状优化：理论与实施

复杂的非局部行为使设计高效多功能元表面成为一项重大挑战。虽然使用元原子库提供了一种简单快速的实现方法，但支柱与支柱之间的相互作用往往会带来性能限制。另一个极端是，基于拓扑优化的反向设计可利用非局部耦合实现高效率，但会导致结构复杂且难以制造。在本文中，我们通过数值和实验证明了一种形状优化方法，它能实现高效率的元表面，同时通过表面梯度的傅立叶分解直接控制结构的复杂性。所提出的方法为实现反向设计的高效率元表面的可制造性提供了一条途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Medicinal Chemistry Letters CHEMISTRY, MEDICINAL-

CiteScore

7.30

自引率

2.40%

发文量

328

审稿时长

1 months

期刊介绍： ACS Medicinal Chemistry Letters is interested in receiving manuscripts that discuss various aspects of medicinal chemistry. The journal will publish studies that pertain to a broad range of subject matter, including compound design and optimization, biological evaluation, drug delivery, imaging agents, and pharmacology of both small and large bioactive molecules. Specific areas include but are not limited to: Identification, synthesis, and optimization of lead biologically active molecules and drugs (small molecules and biologics) Biological characterization of new molecular entities in the context of drug discovery Computational, cheminformatics, and structural studies for the identification or SAR analysis of bioactive molecules, ligands and their targets, etc. Novel and improved methodologies, including radiation biochemistry, with broad application to medicinal chemistry Discovery technologies for biologically active molecules from both synthetic and natural (plant and other) sources Pharmacokinetic/pharmacodynamic studies that address mechanisms underlying drug disposition and response Pharmacogenetic and pharmacogenomic studies used to enhance drug design and the translation of medicinal chemistry into the clinic Mechanistic drug metabolism and regulation of metabolic enzyme gene expression Chemistry patents relevant to the medicinal chemistry field.