Exploring porous glasses as a class of 3D hyperuniform optical materials

探索多孔玻璃作为一类 3D 超均匀光学材料

• 批准号: 529736062
• 负责人: Professor Dr. Dirk Enke
• 金额: --
• 依托单位: Institut für Technische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/529736062?language=en
• 关键词: Exploring; porous; glasses; class; 3D

Disordered materials, albeit occurring in countless forms in nature around us, always have been harder to research than perfectly ordered or even fully random materials due to the complexity of quantifying disorder. Only in recent years, the scientific community realized the potential of correlated disorder for many fields of nature. A particular type of exotic configurations within the wide parameter space of correlated disorder is called hyperuniform disorder. Hyperuniform disordered states is distinguished from other disordered states by suppressing density fluctuations in the limit of large length scales, a property that was previously thought to be distinctive to periodic structures. We have shown together with the Karlsruhe Institute of Technology (KIT), for the first time, scalable approaches for 2D nearly hyperuniform arrangements of nanodisks. An even greater challenge, and the goal of this proposal, is the scalable fabrication of 3D hyperuniform structures. Our approach is the tailored design of spinodal decomposition in porous glasses. Though there is a strong theoretical case for hyperuniformity in such spinodal structures, to the best of our knowledge, no direct experimental proof exists to date.

尽管无序材料在我们周围的自然界中以无数种形式存在，但由于量化无序的复杂性，它总是比完全有序甚至完全随机的材料更难研究。直到最近几年，科学界才意识到相关性疾病在自然界许多领域的潜力。在关联无序的宽参数空间内的一种特殊的奇异组态被称为超均匀无序。超均匀无序态与其他无序态的区别在于抑制了大尺度范围内的密度波动，这一特性以前被认为是周期性结构的特征。我们与卡尔斯鲁厄理工学院（KIT）一起首次展示了用于纳米盘的2D近超均匀排列的可扩展方法。一个更大的挑战，也是这项提案的目标，是可扩展的3D超均匀结构的制造。我们的方法是在多孔玻璃的调幅分解量身定制的设计。虽然有一个强有力的理论情况下，超均匀性在这样的旋节结构，据我们所知，没有直接的实验证据存在的日期。