Adaptive perfectly matched layer for Wood's anomalies in diffraction gratings
Optics
2015-06-23 v1
Abstract
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.
Keywords
Cite
@article{arxiv.1506.06254,
title = {Adaptive perfectly matched layer for Wood's anomalies in diffraction gratings},
author = {Benjamin Vial and Frédric Zolla and André Nicolet and Mireille Commandré and Stéphane Tisserand},
journal= {arXiv preprint arXiv:1506.06254},
year = {2015}
}
Comments
arXiv admin note: substantial text overlap with arXiv:1302.1032