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Pre-Publicación 2017-10

Cinthya Rivas, Rodolfo Rodríguez, Manuel Solano:

A perfectly matched layer for finite-element calculations of diffraction by metallic surface-relief gratings

Abstract:

We introduce a perfectly matched layer approach for finite element calculations of diffraction by metallic surface-relief gratings. We use a non-integrable absorbing function which allows us to use thin absorbing layers which reduce the computational time when simulating this type of structure. In addition, we numerically determine the best choice of the absorbing layer parameters and show that they are independent of the wavelength.

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