When assembled in periodic arrangements, metallic nanostructures (NSs) support plasmonic surface lattice (SL) resonances resulting from long-range interactions these surface lattice resonances differ radically from localized surface plasmon (LSP). Similarly to the hybridization of LSP resonances, observed in short-range interactions, we demonstrate the possibility to generate a hybridization of surface lattice (SL) plasmon resonances, by the excitation of grazing order diffraction within the metasurface. This hybridization leads to the emergence of bonding and anti-bonding modes. If hybridization of LSP modes has been widely described in recent literature, there is still no experimental proof-of-concept reporting such hybridization with SL plasmon resonances. We fill this gap in the present paper by considering surfaces made of binary arrays with unit cells made of two gold disks of distinct diameters. We demonstrate the possibility to maximize or cancel the interaction between the hybridized SL resonances by simply controlling the distance between particles. All our experimental results are supported by FDTD calculations. The hybridization of SL modes results in much richer hybridization scenario in terms of wavelength and quality factor control, compared to a hybridization of LSP in a short-range configuration. It offers unprecedented opportunities to generate innovative optical devices, with high flexible tunability.

中文翻译：

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表面晶格模式的混合：走向具有高度灵活可调性的等离子体超表面

当以周期性排列组装时，金属纳米结构 (NS) 支持由长程相互作用产生的等离子体表面晶格 (SL) 共振，这些表面晶格共振与局域表面等离子体 (LSP) 截然不同。类似于在短程相互作用中观察到的 LSP 共振的杂交，我们证明了通过在超表面内激发掠阶衍射来产生表面晶格 (SL) 等离子体共振的杂交的可能性。这种杂交导致出现粘接和防粘连模式。如果最近的文献中广泛描述了 LSP 模式的杂交，那么仍然没有实验概念证明报告这种与 SL 等离子体共振的杂交。我们通过考虑由二元阵列制成的表面和由两个不同直径的金盘制成的晶胞来填补本文中的这一空白。我们展示了通过简单地控制粒子之间的距离来最大化或取消杂交 SL 共振之间相互作用的可能性。我们所有的实验结果都得到了 FDTD 计算的支持。与短程配置中的 LSP 混合相比，SL 模式的混合在波长和品质因数控制方面产生了更丰富的混合场景。它提供了前所未有的机会来产生创新的光学设备，