Kondratov A V, Rogov O Y, Gainutdinov R V
Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, 119333 Moscow, Russia.
Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, 119333 Moscow, Russia.
Ultramicroscopy. 2017 Oct;181:81-85. doi: 10.1016/j.ultramic.2017.05.013. Epub 2017 May 11.
A significant part of the optical metamaterial phenomena has the plasmonic nature and their investigation requires very accurate knowledge of the fabricated structures shape with a focus on the periodical features. We describe a consistent approach to the shape reconstruction of the plasmonic nanostructures. This includes vertical and tilted spike AFM probes fabrication, AFM imaging and specific post-processing. We studied a complex-shaped chiral metamaterial and conclude that the described post-processing routine extends possibilities of the existing deconvolution algorithms in the case of periodical structures with known rotational symmetry, by providing valuable information about periodical features.
光学超材料现象的很大一部分具有等离激元性质，对它们的研究需要非常精确地了解所制备结构的形状，尤其要关注其周期性特征。我们描述了一种用于等离激元纳米结构形状重建的连贯方法。这包括垂直和倾斜尖峰原子力显微镜探针的制备、原子力显微镜成像以及特定的后处理。我们研究了一种形状复杂的手性超材料，并得出结论：在具有已知旋转对称性的周期性结构的情况下，所描述的后处理程序通过提供有关周期性特征的有价值信息，扩展了现有反卷积算法的应用可能性。
