Jun-ichiro Sugisaka

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We expand the difference-field boundary element method (DFBEM) to calculate wave scattering from a variety of local periodic structure defects. The DFBEM is a numerical method for simulating the diffraction caused by a periodic surface-relief structure with a defect. Although it is more efficient than conventional techniques such as the finite-difference(More)
Scattering from a periodic linear-groove structure with bridge defect is efficiently analyzed by using the difference-field boundary element method (DFBEM). Three-dimensional analysis of such groove structure generally requires considerable computational resources owing to its infinite structure size and aperiodicity. In the DFBEM, the periodic field(More)
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