對於理論分析結果的準確性,我們使用COMSOL數值分析軟體來做結構模擬,驗證出理論分析的結果具有相當的準確性。本論文的滑軌型波導表面電漿偏極子金微米環結構,其表面電漿共振角在色散曲線的預測下為17.1度,而在我們所提出的分析方法中為17.2度,誤差為0.5%,可有效預測並節省製成上的嘗試時間。 ;In this paper, we study the condition to excite the surface plasmon in the pulley-type metallic microring structure. Helmholtz equation is applied to determine the equivalent incidence angle of the curved waveguide with different-order in the TM modes by the conformal transformation method. The surface plasmon excitation angle is confirmed by the finite-element method. The pulley-type metallic microring structure is analyzed for different structures to obtain stronger surface plasmon excitation.