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- W2985262389 abstract "A new optimization method based on the topological derivative concept is developed for the electromagnetic design problem. Essentially, the purpose of the topological derivative method is to measure the sensitivity of a given shape functional with respect to a singular domain perturbation, so that it has applications in many relevant fields such as shape and topology optimization for imaging processing, inverse problems, and design of metamaterials. The topological derivative is rigorously derived for the electromagnetic scattering problem and used as gradient descent direction to find local optima for the design of electromagnetic devices. We demonstrate that the resulting topology design algorithm is remarkably simple and efficient and naturally leads to binary designs, while depending only on the solution of the conventional finite element formulation for electrodynamics. Finally, several numerical experiments in two and three spatial dimensions are presented to illustrate the performance of the proposed formulation." @default.
- W2985262389 created "2019-11-22" @default.
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- W2985262389 date "2019-11-01" @default.
- W2985262389 modified "2023-10-17" @default.
- W2985262389 title "Optimization of the electromagnetic scattering problem based on the topological derivative method" @default.
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- W2985262389 doi "https://doi.org/10.1364/oe.27.033586" @default.
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