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Efficient Scattering Analysis of Arbitrarily Shaped Local Defect in Diffraction Grating
IEICE TRANSACTIONS on Electronics
Publication Date: 2016/01/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
diffraction grating, boundary-element method, defect, scattering, numerical analysis,
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We propose an algorithm for the scattering analyses of gratings with various local defects based on the difference-field boundary-element method (DFBEM). In the algorithm, the defect in the grating is partitioned, and the DFBEM is sequentially applied for each defect section. We validate the proposed algorithm by demonstrating its flexibility for various defect topologies for a locally deformed grating.