Materials World Network: Non-linear photonic crystals based on inorganic/organic hybrid systems

材料世界网：基于无机/有机杂化系统的非线性光子晶体

• 批准号: 24818006
• 负责人: Professor Dr. Martin Steinhart
• 金额: --
• 依托单位: Institut für Chemie neuer Materialien
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/24818006?language=en
• 关键词: Materials; World; Network; Non; linear

This project aims at the design, fabrication and characterization of a modular assembly system of non-linear photonic crystals (PhCs) compatible with silicon technology. They will be based on extended monodomains of aligned macropores mainly in silicon (Si) matrices, but also in titania (TiO2) for applications in the visible range. The pores will be infiltrated with a consciously designed set of organic and polymeric materials with chromophores based on the phenylene ethynylene motif, exhibiting non-linear optical (NLO) behavior. Additionally, the optical properties of these materials will be probed on the molecular level and bulk polymer level. We will theoretically evaluate various designs for non-linear PhCs. Particular attention will be paid to the controlled generation of specific supramolecular architectures of the molded material. The systematic variation of the degree of polymerization of these rod-shaped molecules and the investigation of 2 corresponding mixtures with optically inactive carrier polymers aims at the tailoring of the concentration, dispersion and orientational distribution of the chromophores. We plan to study the mechanisms of infiltration and mesophase formation aiming at the realization of specific chromophore orientations on a macroscopic scale. PhCs with specific NLO defect structures, such as waveguides, will be prepared by selectively filling individual pores with NLO materials. These wave-guiding structures will allow opto-optical switching and selective emission.

该项目旨在与与硅技术兼容的非线性光子晶体（PHCS）模块化组装系统的设计，制造和表征。它们将基于主要在硅（SI）矩阵中的对齐大孔的扩展单域，但也将基于可见范围内应用的Titania（Tio2）。孔将以有意识地设计的一组有机和聚合物材料浸入，并基于苯烯乙烯烯基序具有发色团，表现出非线性光学（NLO）行为。此外，这些材料的光学特性将在分子水平和大量聚合物水平上进行探测。理论上，我们将评估非线性PHC的各种设计。特别关注模制材料的特定超分子结构的受控生成。这些棒状分子的聚合程度的系统变化以及对2种具有光学无效载体聚合物的相应混合物的研究旨在调整发色团的浓度，分散和方向分布。我们计划研究旨在以宏观尺度实现特定发色团取向的浸润和中间体形成的机制。具有特定NLO缺陷结构（例如波导）的PHC将通过选择性填充单个孔中的NLO材料来制备。这些波浪引导结构将允许光学开关和选择性发射。