中文摘要：

表面等离子体在波导与共振微腔结构器件传输中的特性，在光通信、光电信息、集成光学等领域有广泛的应用。本研究提出了一种等离子体波导与共振环微腔结构组成的设计方案，利用传输矩阵法和耦合模理论对该结构进行理论分析。通过模拟微环谐振腔的传输特性，得到不同波长下环腔结构的光场分布图及透射率谱线，发现了该结构存在滤波特性。进一步改变结构参数，发现改变耦合间距和波导宽度等参数对滤波特性均有影响，利用时域有限差分（FDTD）算法模拟场分布验证了本研究的理论设计。该设计结构紧凑、尺寸小巧，容易被集成到光学线路中，有潜力发展成为新一代纳米集成光路的基本元器件。

英文摘要：

The transmission characteristics of surface plasmon polaritons in waveguide and ring mi- cro-cavity structure has been widely applied in many fields such as optical communication, opto-electroni- cal information, intergrated optics. The transmission characteristics of the ring cavity resonance mode are studied based on the metal surface plasmon MIM waveguide. The structure is analyzed by using the theory of the transfer matrix method and the coupled-mode. The COMSOL software is utilized to simulate the transmission properties of micro ring resonator, and to get the field distributions and transmission lines of the ring cavity structure under different wavelengths. The optical filtering characteristics have been found in this subwavelength structure. The filtering characteristics vary with the changing of the depths of re- sonators and groove widths. The field distribution of the structure is investigated hv using the finite-differ-ence time-domain （FDTD） method to verify our design. The micro ring resonator based on MIM waveguide is more compact, small in size, easy to be integrated into optical circuits, and extremely has the potential to develop into a new generation of integrated nano-optical basic components.