本論文中運用不同的結構來激發表面電漿子的效果，分別為無窮金屬所組成的半平面、有限厚度金屬與介質所組成的結構以及金屬－絕緣體－金屬結構三種架構，對於任何結構之色散曲線的了解，輸入的光源無法激發表面電漿子，須藉助額外提供波向量，本論文所使用的為邊耦合方式來提供額外的波向量。有限厚度與金屬-絕緣體-金屬之結構，金屬與空氣層之介面都會產生一組ω ±共振模態的效果，也可以發現在於有限厚度金屬板之厚度增加時與金屬-絕緣體-金屬之絕緣體厚度增加時，其結果都會趨近於無窮厚度金屬板之表面電漿模態，這樣的結果是可以預期的，並且利用對稱與反對稱共振的模態可激發不同效果的表面電漿波。

The thesis uses different structure to excite surface plasmons，There are three kinds of structure，It is a metal with infinite thickness、a metal with finite thickness and Metal-Insulator-Metal，Any structure isn't to excite surface plasmons by dispersion curve，It is added the wave vector，The thesis uses end-fire coupling to increase the wave vector。There are two kinds of ω ± mode in structure of a metal with finite thickness and Metal-Insulator-Metal，When the metal thickness of a metal with finite thickness increases and the Insulator thickness of Metal -Insulator-Metal，It is equal to a metal with infinite thickness，Such a result expecting，Use the resonance modes of the symmetry and antiesymmetry to excite difference result of surface plasmons。

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