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Split-step finite-difference time-domain method with perfectly matched layers for efficient analysis of two-dimensional photonic crystals with anisotropic media

机译:具有完美匹配层的分步有限差分时域方法,可有效分析具有各向异性介质的二维光子晶体

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摘要

This Letter presents a split-step (SS) finite-difference time-domain (FDTD) method for the efficient analysis of two-dimensional (2-D) photonic crystals (PhCs) with anisotropic media. The proposed SS FDTD method is formulated with perfectly matched layer boundary conditions and caters for inhomogeneous anisotropic media. Furthermore, the proposed method is derived using the efficient SS1 splitting formulas with simpler right-hand sides that are more efficient and easier to implement. A 2-D PhC cavity with anisotropic media is used as an example to validate the efficiency of the proposed method.
机译:这封信提出了一种分步(SS)时域有限差分(FDTD)方法,用于利用各向异性介质有效分析二维(2-D)光子晶体(PhC)。提出的SS FDTD方法是在层边界条件完美匹配的情况下制定的,并适合非均质各向异性介质。此外,所提出的方法是使用有效的SS1拆分公式推导的,该公式具有更简单的右侧,更易于实现。以具有各向异性介质的二维PhC腔为例,验证了该方法的有效性。

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