在亚波长光学集成中,波导中表面等离子体传输模式的激发是一个重要的问题。利用表面全息法设计结构,并对表面等离子体波进行整形。将平面等离子体波匹配到双线波导中的对称和反对称模式,从而实现波导中两种模式的有效激发。利用时域有限差分法对设计结构进行验证,发现双线波导中两种模式能够有效激发。对结构参数进行优化,对称与反对称模式的激发效率分别达到8.7%和10.8%。 In subwavelength optical integration, the excitation of the surface plasmon transmission mode in the waveguide is an important issue. Surface holography is used to design the structure and shape the surface plasmon wave. Matching plane plasmon waves to symmetrical and antisymmetric modes in two-wire waveguides enables efficient excitation of both modes in the waveguide. The time-domain finite difference method was used to verify the design structure and found that the two modes in the two-wire waveguide can be effectively excited. Optimizing the structural parameters, the excitation efficiencies of symmetric and anti-symmetric modes are 8.7% and 10.8% respectively.