工程强磁偶极子共振在全介电超表面

Megha Khokhar, R. V. Nair
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引用次数: 0

摘要

我们研究了由二维周期性排列的纳米圆盘方阵组成的全介电超表面。通过进行模拟研究,确定了由结构引起的电偶极子和磁偶极子共振的起源。通过调整超表面的直径、高度和周期性,阐明了不同共振的基本物理性质。工程研究了具有高散射效率的强磁偶极子谐振特性,优化了超表面所需共振波长下的结构参数。这些研究对于阐明具有增强磁行为的超表面对于各种磁光研究至关重要。
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Engineering strong magnetic dipole resonance in all- dielectric metasurfaces
We have investigated the all-dielectric metasurface comprising the square array of nanodisks periodically arranged in two dimensions. The studies examined by performing the simulations determine the origin of the electric and magnetic dipole resonances induced by the structure. The underlying physics of the different resonances is elucidated by tuning the diameter, height, and periodicity of the metasurface. The strong magnetic dipole resonant feature with high scattering efficiency is scrutinized by engineering the structural parameters optimized at the desired resonance wavelength for the metasurface. The studies are crucial to illustrate such metasurfaces with enhanced magnetic behavior for various magneto-optical studies.
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