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.

该项目旨在设计、制造和表征与硅技术兼容的非线性光子晶体（PhC）模块化组装系统。它们将基于主要在硅 (Si) 基质中的排列大孔的扩展单域，但也基于二氧化钛 (TiO2)，用于可见光范围的应用。孔隙将渗透一组精心设计的有机聚合物材料，其发色团基于亚苯基乙炔基图案，表现出非线性光学（NLO）行为。此外，还将在分子水平和本体聚合物水平上探讨这些材料的光学特性。我们将从理论上评估非线性光子器件的各种设计。将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度的系统变化以及对具有光学非活性载体聚合物的2种相应混合物的研究旨在定制发色团的浓度、色散和取向分布。我们计划研究渗透和中间相形成的机制，旨在在宏观尺度上实现特定的发色团方向。具有特定非线性光学缺陷结构（例如波导）的光子晶体将通过选择性地用非线性光学材料填充单个孔来制备。这些波导结构将允许光电转换和选择性发射。