Method of field expansions for vector electromagnetic scattering by layered periodic crossed gratings.
Method of field expansions for vector electromagnetic scattering by layered periodic crossed gratings.
复制标题
层状周期交叉光栅矢量电磁散射的场展开方法。
DOI：
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复制
发表时间：
2015
影响因子：
1.9
通讯作者：
D. Nicholls
中科院分区：
文献类型：
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作者：
D. Nicholls
在许多科学和工程应用中，线性波对周期性层状介质散射的精确模拟起着至关重要的作用。从天体物理学和海洋学到材料科学和成像，以快速和稳健的方式数值模拟这种配置的能力至关重要。在这方面的贡献，我们专注于特定的问题，矢量电磁辐射相互作用的多层周期性交叉衍射光栅。虽然所有的偏微分方程的数值模拟的经典方法已经带来了承担后，这个问题，我们认为，在这个特定的背景下，高阶扰动的表面的方法是上级。特别是，我们描述了如何将场展开方法扩展到存在多层的完全矢量和三维散射问题。具体的数值实验，我们将展示显着的效率，保真度，和高阶精度可以实现该算法的实施。
In many applications of scientific and engineering interest the accurate modeling of scattering of linear waves by periodic layered media plays a crucial role. From geophysics and oceanography to materials science and imaging, the ability to simulate such configurations numerically in a rapid and robust fashion is of paramount importance. In this contribution we focus upon the specific problem of vector electromagnetic radiation interacting with a multiply layered periodic crossed diffraction grating. While all of the classical methods for the numerical simulation of partial differential equations have been brought to bear upon this problem, we argue here that in this particular context a high-order perturbation of surfaces approach is superior. In particular, we describe how the method of field expansions can be extended to the fully vectorial and three-dimensional scattering problem in the presence of multiple layers. With specific numerical experiments we will show the remarkable efficiency, fidelity, and high-order accuracy one can achieve with an implementation of this algorithm.
影响因子：
17.1
作者：
Im H;Lee SH;Wittenberg NJ;Johnson TW;Lindquist NC;Nagpal P;Norris DJ;Oh SH
通讯作者：
Oh SH