Robust optimization in electromagnetic scattering problems

Dimitris Bertsimas*, Omid Nohadani, Meng Teo Kwong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

In engineering design, the physical properties of a system can often only be described by numerical simulation. Optimization of such systems is usually accomplished heuristically without taking into account that there are implementation errors that lead to very suboptimal, and often, infeasible solutions. We present a robust optimization method for electromagnetic scattering problems with large degrees of freedom and report on results when this technique is applied to optimization of aperiodic dielectric structures. The spatial configuration of 50 dielectric scattering cylinders is optimized to match a desired target function such that the optimal arrangement is robust against placement and prototype errors. Our optimization method inherently improves the robustness of the optimized solution with respect to relevant errors and is suitable for real-world design of materials with unconventional electromagnetic functionalities, as relevant to nanophotonics.

Original languageEnglish (US)
Article number074507
JournalJournal of Applied Physics
Volume101
Issue number7
DOIs
StatePublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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