本論文在探討消逝波在鈉鉀離子交換波導表面的分佈情形，並進一步研究金奈米粒
子受波導表面消逝波推動時的運動情形。
在實驗上，我們利用Rsoft 軟體模擬不同波導參數下的模態數及模場空間分佈，進一步分析波導表面消逝波與波導尺寸的關係。接著利用模擬結果實際製做鈉鉀離子交換
波導，製做完成後分別對波導進行波導的光學特性量測，以及利用近場掃描光學顯微鏡
來量測分析波導表面消逝波的分佈。最後再以532nm 的綠光雷射導入波導，觀察波導表面的金奈米粒子的運動情形，分析CCD 連續拍攝的結果，發現金團簇移動的速度可達317.94μm/sec。

In this study, we analyze the interplay between the evanescence field distribution and the particle motion based on ion exchanged waveguide.
Theoretically, waveguides with various geometric parameters are simulated and the corresponding evanescent fields are mapped out to understand the propagation characteristics.
Experimentally, ion exchanged waveguides are fabricated, and optical measurements are carried out which determines the propagation loss and the mode distribution within the waveguide. The evanescent waves on waveguide surface are then measured by scanning near-field optical microscope(SNOM). Finally, the propellation of gold nanoparticles by the evanescent field was demonstrated. The velocity is estimated to be 317.94 μm/sec, which is three times larger than that predicted by theory. We attribute this result to the aggregation of Au nano particles which effectively enlarge the particle size.

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