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Article Dans Une Revue Optics Express Année : 2012

Adaptive perfectly matched layer for wood's anomalies in diffraction gratings

Benjamin Vial
  • Fonction : Auteur
ILM
Frederic Zolla
  • Fonction : Auteur
André Nicolet
Mireille Commandre
  • Fonction : Auteur
ILM

Résumé

We propose an Adaptive Perfectly Matched Layer (APML) to be used in diffraction grating modeling. With a properly tailored co-ordinate stretching depending both on the incident field and on grating parameters, the APML may efficiently absorb diffracted orders near grazing angles (the so-called Wood's anomalies). The new design is implemented in a finite element method (FEM) scheme and applied on a numerical example of a dielectric slit grating. Its performances are compared with classical PML with constant stretching coefficient.

Dates et versions

hal-00764535 , version 1 (13-12-2012)

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Benjamin Vial, Frederic Zolla, André Nicolet, Mireille Commandre, Stephane Tisserand. Adaptive perfectly matched layer for wood's anomalies in diffraction gratings. Optics Express, 2012, 20 (27), pp.28094-28105. ⟨10.1364/OE.20.028094⟩. ⟨hal-00764535⟩
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