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- W2028961018 abstract "The Finite Difierence Time Domain (FDTD) method is well suited for the com- putation of the photonic crystals problems. However, this technique has the drawback of high computer memory requirements, when involving complex structures. In this paper, a modifled array implementation for the FDTD algorithm, with increased memory e-ciency, is presented and applied to studies on the abnormal refraction phenomena of the electromagnetic propagat- ing in the photonic crystals. The novel approach is based on memory-mapped flles, which is a mechanism of manipulating memory in Windows or Linux operating system. By using this mechanism, we make use of memory space more availably in allocating and implementing mul- tidimensional arrays for FDTD algorithm. The computed examples are given in the paper to prove the feasibility and accuracy of this strategy. A detailed discussion is presented for the case of the electromagnetic propagating in two-dimensional photonic crystals, formed by parallel air cylinders in a dielectric medium. The results show that some interesting relations can be obtained between the incident and the refraction angles with the group velocity (Vg) and the energy velocity (Ve)." @default.
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- W2028961018 date "2007-01-01" @default.
- W2028961018 modified "2023-09-25" @default.
- W2028961018 title "A Memory-efficient Strategy for the FDTD Implementation Applied to the Photonic Crystals Problems" @default.
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- W2028961018 doi "https://doi.org/10.2529/piers061002103800" @default.
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