色散介质中带有空气区的倾斜光栅结构脉冲响应的TE数值分析

IEICE Trans. Electron. Pub Date : 2022-01-01 DOI:10.1587/transele.2021res0001

R. Ozaki, T. Yamasaki

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引用次数: 2

摘要

在之前的文章中，我们提出了一种结合快速拉普拉斯变换(FILT)法和傅立叶级数展开法(FSEM)的周期性排列色散介质瞬态散射问题的新数值计算方法，并分析了不同宽度色散介质或矩形腔的脉冲响应。从数值结果出发，研究了带矩形腔的周期性排列色散介质对脉冲响应的影响。本文采用FILT、FSEM和多层分割法(MDM)相结合的方法，分析了具有倾斜空气区的色散介质的瞬态散射问题，并研究了空气区的倾斜角度对瞬态散射问题的影响。此外，我们还验证了电磁场的MDM项和截断模式数的计算精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical Analysis of Pulse Response for Slanted Grating Structure with an Air Regions in Dispersion Media by TE Case

SUMMARY In our previous paper, we have proposed a new numerical technique for transient scattering problem of periodically arrayed dispersion media by using a combination of the fast inversion Laplace transform (FILT) method and Fourier series expansion method (FSEM), and analyzed the pulse response for several widths of the dispersion media or rectangular cavities. From the numerical results, we examined the inﬂuence of a periodically arrayed dispersion media with a rectangular cavity on the pulse response. In this paper, we analyzed the transient scattering problem for the case of dispersion media with slanted air regions by utilizing a combination of the FILT, FSEM, and multilayer division method (MDM), and investigated an inﬂuence for the slanted angle of an air region. In addition, we veriﬁed the computational accuracy for term of the MDM and truncation mode number of the electromagnetic ﬁelds.

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IEICE Trans. Electron.

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