Electromagnetic line source scattering by the circular strip with fractional boundary condition

IF 1.9 3区物理与天体物理 Q2 OPTICS

Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2025-08-20 DOI:10.1016/j.jqsrt.2025.109623

Ömer Faruk Alperen , Vasil Tabatadze , Kamil Karaçuha

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引用次数: 0

Abstract

This article explores some core questions about how diffraction behaves when circular arc surfaces incorporate fractional boundary conditions, which extend beyond the classic Dirichlet and Neumann scenarios. Specifically, we investigate how E- and H-polarized electromagnetic waves, generated by a cylindrical source, interact with a slotted circular cylinder designed to meet these fractional boundary conditions. Notably, this is the first time such conditions have been used with circular geometries in the context of cylindrical sources.

We also analyze how different factors — such as boundary conditions, incident angles, and aperture sizes — influence resonance. Our results reveal new types of resonance that arise when the circular arc surface deviates from the conventional perfect electric or magnetic conductor settings. To support our theoretical findings, we developed a MATLAB implementation and carried out numerical simulations, providing further insight into these novel diffraction and resonance phenomena.

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带分数边界条件的圆形条形电磁线源散射

本文探讨了当圆弧表面包含分数边界条件时衍射行为的一些核心问题，这些条件超出了经典的狄利克雷和诺伊曼场景。具体来说，我们研究了由圆柱源产生的E极化和h极化电磁波如何与满足分数边界条件的开槽圆柱相互作用。值得注意的是，这是这种条件第一次在圆柱形源的背景下与圆形几何形状一起使用。我们还分析了不同因素（如边界条件、入射角和孔径大小）如何影响共振。我们的研究结果揭示了当圆弧表面偏离传统的完美电或磁导体设置时产生的新型谐振。为了支持我们的理论发现，我们开发了MATLAB实现并进行了数值模拟，进一步深入了解了这些新的衍射和共振现象。

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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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.