生物分级构型磁性复合材料制备及磁光效应研究

本项目采用自然生物结构作为模板，采取物理和化学实验手段，在保留原始生物精细分级结构的同时，复合贵金属（金、银等）与铁电体（铁、钴、镍等）材料，替换生物原有组分，制备出具有表面等离激元——磁光耦合性质的新型功能复合材料，并研究替换实验过程中的机理。采用建模拟实结合实验结果，研究不同维度、不同结构、不同材质的表面等离激元——磁光耦合功能复合材料在反射和透射方向的磁光响应，以及表面等离激元局域场增强分布，揭示其耦合规律和原理。在此基础上，优化实验条件，制备从一维到三维的不同功能复合材料，进一步研究表面等离激元耦合磁光的信号加强与精准调控。本项目研究的内容对揭示和理解新型微纳结构对表面等离激元与磁光耦合的影响具有重要学术意义，可为接下来的生物、化学传感器、光子芯片、电通讯系统等应用方向打下坚实基础。

The objective of this object is to fabricate surface plasmonic-magneto-optic composite functional materials by duplicating the original biological fine hierarchical structures while replacing the original biological components with ferromagnet and noble metals. Combining the modeling and experiment, the local electromagnetic field enhancement and the magneto-optical responding will be studied in these materials. On this basis, the signal enhancement and precise regulation of the surface plasmonic-magneto-optic coupling in optimized structures will be further studied. This investigation is of great significance to reveal and understand the effects of new Micro-Nanostructures on surface plasmon-magneto-optic coupling. It can lay a solid foundation for the future applications of biology sensors, chemical sensors, photonic chips, electrical communication systems and so on.