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Polarization-independent electromagnetically induced transparency-like metasurface

机译：极化无关的电磁感应的透明面

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摘要

A classical electromagnetically induced transparency-like (EIT-like) metasurface is numerically simulated. This metasurface is composed of two identical and orthogonal double-end semitoroidals (DESTs) metal resonators. Under the excitation of the normal incidence waves, each of the two DESTs structure exhibits electromagnetic dipole responses at different frequencies, which leads to the polarization-independent EIT-like effect. The features of the EIT-like effect are qualitatively analyzed based on the surface current and magnetic field distribution. In addition, the large index is extracted to verify the slow-light property within the transmission window. The EIT-like metasurface structure with the above-mentioned characteristics may have potential applications in some areas, such as sensing, slow light, and filtering devices.
机译：数值模拟了经典的电磁感应类透明（类EIT）超表面。该超表面由两个相同且正交的双端半环形（DEST）金属谐振器组成。在法向入射波的激发下，两个DEST结构中的每一个在不同频率下均表现出电磁偶极响应，从而导致与偏振无关的EIT效应。根据表面电流和磁场分布定性地分析了类EIT效应的特征。另外，提取大索引以验证透射窗内的慢光特性。具有上述特征的类EIT的超表面结构可能在某些领域具有潜在的应用，例如传感，慢光和过滤设备。

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