全介质超构材料的可调超窄带光谱响应现象、机理及应用研究

具有超窄带光谱（UNBS）响应的超构材料在光电功能器件领域具有广阔的应用前景。如何设计具有UNBS效应且性能易于调控的新型材料体系一直是国内外关注的一个热点。本项目拟构筑基于无损耗或超低吸收损耗介电结构的全介质分层超构材料（LDMM），通过研究该体系的强电磁共振光谱响应特征，掌握实现可调UNBS的条件与机理，探索其在光电传输与调控等方面的应用。主要内容包括：1）设计LDMM，研究谐振单元的共振模式以及不同结构单元在空间区域的耦合效应，给出UNBS响应的物理机制；2）分析结构单元的对称破缺、短程有序、分层共振体系光学模式的差异性及其杂化耦合效应，修正和完善相关理论模型，实现“由物及理”的一致性，掌握实现UNBS响应且可多维度调控的方法和内在机理；3）深入研究多元复合共振体系，反馈并优化LDMM大面积低成本制备的方法，进一步探索其潜在应用，为基于UNBS响应的光电材料的制备及应用推广奠定基础。

Meta-materials with ultra-narrowband spectrum (UNBS) effects have very extensive application value and great exploitation foreground in the field of photo-electricity functional devices. How to realize the materials with easily tunable UNBS effect has long been pursued by the domestic and overseas researchers. Based on the lossless or ultralow absorption loss dielectric structures, this project is to build a layered dielectric meta-material (LDMM), study the characteristics of strong electromagnetic resonant spectrum, master the conditions and mechanisms of how to carry out the tunable UNBS, and further explore its applications in optoelectronic transmission and modulation. The main contents of this project include: 1) to design the LDMM and to do investigations on the resonances of the unit cell and the coupling effects between the spatially located different resonators, and then to show the mechanism of the UNBS; 2) to analysis the symmetry-breaking, short-rang order, the distinct responses for the optical modes in the layered system and their hybridized coupling effects, to improve and amend the theoretical models, and then to achieve the consistency of study “from matter to physics”, and finally to master the method to realize the tunable UNBS effects and their physical mechanisms; 3) to do deep study on the composite multiple element systems and get the method of large-area fabrication at low-cost, to further explore the potential applications and lay the foundation for the fabrication and applications and popularizations of the optoelectronic functional materials based on the LDMM structures with UNBS effects.