论文标题
Si纳米盘的Anapolemode的角度依赖性和吸收特性
Angular dependence and absorption properties of the anapolemode of Si nano-disks
论文作者
论文摘要
在硅纳米磁盘阵列中，Anapole模式的极化和角度分辨的光学响应已在实验上并在理论上进行了研究。测量数据和仿真之间的良好一致性得出了对Anapole模式行为的一致描述，TE或TM极化激发表现出不同的特征。散射矩阵计算使我们散布散射和扩散的光贡献，并提供与Anapole模式2D激发相关的吸光度增强的定量估计。 Weper-Perform在TE和TMPalization中均具有远场散射辐射的多极分解，并明确地鉴定出在极好的一致性成员范围内的实验结果中，以极好的一致性鉴定了Anapole共振条件。我们的发现表明，在硅纳米磁盘的工程阵列中，电磁anapole模式激发了光学纳米结构，并具有增强的光 - 纳米结构
The polarization- and angle- resolved optical response of the anapole mode in silicon nano-disks array have been experimentally and theoretically investigated. The good agreement betweenmeasured data and simulations yields to a consistent description of the anapole mode behaviorthat exhibits different features for TE or TM polarization excitation. Scattering matrix calculationallows us to disentangle scattered and diffused light contributions and to provide a quantitativeestimation of the absorbance enhancement associated to 2D excitation of the anapole mode. Weperformed the multipolar decomposition of the far-field scattered radiation for both TE and TMpolarizations and unambiguously identified the anapole resonant condition in excellent agreementwith the experimental results over a large range of incident angles. Our findings demonstrate thecontrolled excitation of electromagnetic anapole modes in engineered arrays of silicon nano-disksfor the development of optical nanostructures with enhanced light-matter interaction
