Dr. Omar Khatib Profile

Dr. Omar Khatib

at Duke Univ

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Proceedings Article | 17 March 2023 Presentation

Metamaterial design with physics informed neural networks

Omar Khatib, Simiao Ren, Jordan Malof, Willie Padilla

Proceedings Volume PC12431, PC124310O (2023) https://doi.org/10.1117/12.2661089

KEYWORDS: Metamaterials, Physics, Neural networks

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Metamaterials enable tailoring of light–matter interactions, driving discoveries which fuel novel applications. Deep neural networks (DNNs) have shown marked achievements in metamaterials research, however they are black boxes, and it is unknown how they work. We present a causal DNN where the learned physics is available to the user. Here, the condition of causality is enforced through a deep Lorentz layer which takes in the geometry of an all-dielectric metamaterial, and outputs the causal frequency-dependent permittivity and permeability. The ability of the LNN to learn metamaterial physics is verified with examples, and results are compared to theory and simulations.

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