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Modeling the optical properties of transparent and absorbing dielectrics by means of symbolic regression

Abstract : In this contribution we explore the possibilities and limitations of symbolic regression as an alternative to the approaches currently used to characterize the dispersive behavior of a given material. To this end, we make use of genetic programming to retrieve, from either ellipsometric or spectral data, closed-form expressions that model the optical properties of the materials studied. In a first stage we consider transparent dielectrics for our numerical experiments. Next we increase the complexity of the problem and consider absorbing dielectrics, which not only require the use of complex functions to model their dielectric function, but also imply a supplementary constraint imposed by the verification of the causality principle.
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https://hal-utt.archives-ouvertes.fr/hal-03845878
Contributor : Demetrio MACIAS Connect in order to contact the contributor
Submitted on : Wednesday, November 9, 2022 - 6:22:31 PM
Last modification on : Friday, November 11, 2022 - 4:01:52 AM

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Qingmeng Li, Demetrio Macias, Alexandre Vial. Modeling the optical properties of transparent and absorbing dielectrics by means of symbolic regression. Optics Express, 2022, 30 (23), pp.41862-41873. ⟨10.1364/oe.468110⟩. ⟨hal-03845878⟩

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