Born-Padé method for scattering by a diffraction grating

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Born-Padé method for scattering by a diffraction grating

s polarization

Conference Paper (2024)

Author(s)

Thomas A. van der Sijs (TU Delft - Applied Sciences)

Omar El Gawhary (TU Delft - Applied Sciences)

H. Paul Urbach (TU Delft - Applied Sciences)

Research Group

ImPhys/El Gawhary group

Scattering Electromagnetism Diffraction grating Born series Padé approximants

DOI related publication

https://doi.org/10.1117/12.3015272 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:357157f6-5ddf-494d-813e-25326fa7b902

More Info

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Publication Year

2024

Language

English

Research Group

ImPhys/El Gawhary group

Article number

129910V

ISBN (electronic)

9781510673007

Event

Nanophotonics X 2024 (2024-04-07 - 2024-04-12), Strasbourg, France

Downloads counter

258

Abstract

We use a rigorous vector Born series to solve electromagnetic scattering by a diffraction grating. To deal with possible divergence of the Born series, we compute Padé approximants of the Born series to retrieve the solution regardless. Besides results of the Born-Padé method for an example grating, for which the Born series diverges, we show analytical expressions for a two-layer grating in the case of s polarization. This gives insight into the convergence behavior of the Born series as function of the angle of incidence, for instance.