An all-dielectric periodic array is proposed to form plasmon lattice resonances (PLR). In the array, Si nanopillars are on top of SiO₂ nanopillars, and SiO₂ nanopillars are on top of quartz substrates. The simulated results show that the line-width of the PLR can be as small as 3.3 nm. This can be attributed to the coupling between the Mie resonances of Si nanopillars and the diffracted waves. While the PLR can’t be formed by the periodic Si nanopillar array directly sitting on quartz substrates. The diameter and height of Si nanopillars, the period of the array and the height of SiO₂ nanopillars have significant impacts on the PLR. This work extends the application of PLR.

提出了一种全电介质周期阵列来形成等离子体晶格共振 (PLR)。在阵列，硅纳米柱是在SiO的顶部_2个纳米柱，和SiO ₂纳米柱是在石英衬底上的顶部。仿真结果表明，PLR 的线宽可以小到 3.3 nm。这可归因于 Si 纳米柱的 Mie 共振与衍射波之间的耦合。而PLR不能由直接位于石英衬底上的周期性Si纳米柱阵列形成。Si纳米柱的直径和高度、阵列的周期和SiO ₂纳米柱的高度对PLR有显着影响。这项工作扩展了 PLR 的应用。