Adaptive mesh for computation of electromagnetic wave propagation through high refractive index dielectric structuresстатья
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Дата последнего поиска статьи во внешних источниках: 12 августа 2020 г.
Аннотация:We consider spatial step selection for nite-difference solution of Maxwell's curl equations in presence of dielectric interfaces. If the contrast of the refractive indices is high, the wave number in optically thick medium decreases greatly and the elds oscillate fast. To improve accuracy, we propose a special quasi-uniform mesh which provides fine enough meshes in the vicinity of the interface and does not impose abundant computations in optically thin medium. The fundamental advantage of quasi-unform meshes in nite-difference is the possibility to obtain the solution simultaneously with its error value. We describe the corresponding procedure.