Abstract

The two-dimensional problem on the diffraction of a plane electromagnetic wave of ТМ-type on a nanostructure composed of a square silver plate with an inserted square glass nanofiber was considered. In the optical region of wavelengths, the short- and long-range fields and the scattering spectra were calculated by rigorous numerical methods. The effect of silver losses, the thickness of structure walls, and the incidence angle of a plane polarized TM-wave on the resonances of plasmons was studied. The splitting and degeneration of quadrupole and dipole resonances were shown to occur in such a structure.

中文翻译：

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对称插入矩形玻璃纳米纤维的矩形银板中的等离子体共振。

摘要

考虑了在由方形银板和插入的方形玻璃纳米纤维组成的纳米结构上，ТМ型平面电磁波在二维结构上的衍射问题。在波长的光学区域中，通过严格的数值方法计算了近场和远场以及散射光谱。研究了银损，结构壁的厚度以及平面极化TM波的入射角对等离子体激元共振的影响。在这种结构中，四极和偶极共振的分裂和退化被证明是发生的。