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(玻璃稜鏡-銀金屬薄膜-茶)為基礎(原 Kretschmann 創始基本組態是:稜鏡-金屬薄膜-空氣)激發金屬表面電漿波對本研究量測物質綠茶、紅茶與烏龍茶之研究。我們的研究方法除了根據光學受挫式全反射方法與激發金屬表面電漿波之 Kretschmann 組態外,也參考了 Kretschmann,E. 於1971年後,陸續所發表之論文的理論、量測金屬表面電漿波的光學實驗架構、三層反射率公式及 MATLAB 軟體進行整個研究。本文主體研究是藉由不同銀金屬薄膜厚度變化進行電腦模擬,並找出本新樣式的 Kretschmann 組態激發表面電漿波時之較佳銀金屬薄膜層厚度,並對整個模擬結果作深入分析與探討。
This present study based optical frustrated total reflection method and the new style of Kretschmann configuration (Bk7 glass - silver metal film for tea) (The basis of Kretschmann configuration is: glass prism - metal film for air) to excite metal surface plasma waves to measure substance of green tea,black tea and Oolong tea. In addition to the total reflection type optical frustrated Kretschmann configuration and the excited metal surface plasma wave methods, this study referred to other theory (Kretschmann, E. 1971) executed his conception successfully in optical experiments to measure the metal surface structure of the plasma wave, which were combined with three reflectance formulas in this study. The results were also simulated by MATLAB for further analysis and discussion.