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Adaptive perfectly matched layer for Wood's anomalies in diffraction gratings
- Publication Year :
- 2015
-
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.<br />Comment: arXiv admin note: substantial text overlap with arXiv:1302.1032
- Subjects :
- Physics - Optics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1506.06254
- Document Type :
- Working Paper