论文标题
多孔SIO $ _2 $涂层的介电元表面具有一致的性能，而与环境条件无关
Porous SiO$_2$ coated dielectric metasurface with consistent performance independent of environmental conditions
论文作者
论文摘要
随着功能介电元面的快速发展及其在片上纳米光子设备上的集成，因此需要在不同环境中工作的元时间，尤其是在生物学应用中，兴起。然而，元信息的性能与单位电池的效率相关，最终是为其设计的周围环境，从而降低了其适用性，如果暴露于更改折射率介质。在这里，我们报告了一种通过覆盖高索引元图的高索引多孔SIO $ _2 $胶片来提高元表面多功能性的方法，从而保护了跨表面免受环境变化的影响，同时使工作效率保持不变。我们表明，即使暴露于流体环境时，覆盖的元表面仍保留其功能。
With the rapid advances of functional dielectric metasurfaces and their integration on on-chip nanophotonic devices, the necessity of metasurfaces working in different environments, especially in biological applications, arose. However, the metasurfaces' performance is tied to the unit cell's efficiency and ultimately the surrounding environment it was designed for, thus reducing its applicability if exposed to altering refractive index media. Here, we report a method to increase a metasurface's versatility by covering the high-index metasurface with a low index porous SiO$_2$ film, protecting the metasurface from environmental changes while keeping the working efficiency unchanged. We show, that a covered metasurface retains its functionality even when exposed to fluidic environments.
