本文主要是利用光學受挫式全反射方法和新樣式的Kretschmann組態。新樣式的Kretschmann組態為磷化鎵稜鏡-銀金屬薄膜-氯化鈉。原Kretschmann組態為玻璃稜鏡-金屬薄膜-空氣。本文主要研究為Kretschmann組態激發銀金屬表面電漿波對氯化鈉共振角之研究。本研究藉由不同銀金屬薄膜厚度變化進行電腦模擬,找出最佳化銀金屬薄膜厚度。本研究結果顯示,量測物質氯化鈉在 Kretschmann組態銀薄膜厚度45(nm)時,具有最佳檢測響應。即本研究組態在銀薄膜厚度45(nm)時,所產生的表面電漿波具有深且窄的最佳化表面電漿波共振角。
The article is mainly use frustrated total reflection of optics method and new pattern is Kretschmann configuration. The new pattern Kretschmann configuration is Gap prism - silver metal film - sodium chloride. Original Kretschmann is Glass Prism - Metal film - air. The article main of study method is Kretschmann configuration excitation the metal surface plasma waves to measurement substance - sodium chloride him resonance angle. Moreover, this research the silver metal film thickness with different variation under way computer simulation, find kretschmann out optimization silver metal film thickness of arousing surface plasma wave. The results of study displayed, measuring substance sodium chloride in the Kretschmann configuration silver film thickness 45 (nm), possess the best detection response. Even configured in the study at the silver film thickness 45 (nm), surface plasma waves produced possess deep and narrow the best surface plasma wave resonance angle.