近年来，基于石墨烯优异光电特性的石墨烯光电子学已成为国际研究热点，其进展有助于揭示二维量子受限体系的新颖光学效应和开发高性能光电子器件。但石墨烯的单原子层厚度严重限制了其与光场的有效相互作用，使石墨烯光电子学的发展受到挑战。本项目旨在研究平板光子晶体（PPC）波导中慢光与石墨烯相互作用的物理机理，探索一种宽谱带、高效率增强石墨烯与光场相互作用的新手段，并在相关理论和技术上取得系列原创性成果。拟开展的主要研究有：①PPC波导中慢光与石墨烯相互作用现象及物理机理；②基于PPC慢光波导的石墨烯光电转换增强效应及应用；③石墨烯主动调控PPC波导中慢光特性的机制及应用。拟解决的关键科学问题是：PPC波导中慢光耦合石墨烯的理论模型和高性能石墨烯光电子器件的设计。研究成果不仅有助于揭示慢光耦合石墨烯系统中的新现象，还有助于发展新的高性能调制器和探测器，为石墨烯光电子学的研究和新应用提供理论和实验基础。

Recently, due to graphene’s distinctive optical and electrical properties, graphene optoelectronics becomes an interesting research topic. The research progress on this topic can help reveal novel optical phenomena in two-dimensional quantum confined system and develop high-performance optoelectronic devices. However, the single atomic layer of graphene limits its effective interaction with light, presenting a challenge for the development of graphene optoelectronics. The main purpose of this project is to study physical mechanism of the interactions between graphene and slow-light in planar photonic crystal (PPC) waveguides, which could provide a new method to effectively enhance the graphene-light interaction in a broad spectral range. The study results may indicate several new breakthroughs on the theories and technologies about graphene optoelectronics. To achieve these, following major studies will be carried out: (1) Physical phenomena and mechanism of the interactions between graphene and slow-light in PPC waveguides; (2) Enhancement effect on graphene’s photoelectric conversion based on the slow-light in PPC waveguides and its applications; (3) Mechanism of active modulations on slow-light in PPC waveguides by graphene and its applications. The key scientific problems to be solved are the theoretical model of the coupling between graphene and slow-light in PPC waveguides, and designs for high-performance graphene optoelectronic devices. The results obtained from above studies can not only help reveal novel phenomena in the coupling system of graphene and slow-light, but also promise developments of high-performance modulators and photodetectors, providing theory and experiment fundamentals for the new research and applications of graphene optoelectronics.