本論文是根據受挫式內部全反射法於Kretschmann組態來激發表面電漿波。由於各種不同頻率的波會改變水之介電常數,Kretschmann組態在激發表面電漿波時,能夠靈敏地辨別各種頻率的波對常溫水之共振角度影響。本研究是利用三層反射率公式來進行電腦模擬,利用各種不同頻率的波於水中並改變Kretschmann組態的金屬薄膜厚度來觀察其差異;在實驗光路設計時首先運用氦氖雷射調出平行光束做為激發表面電漿波的入射光源,再利用旋轉平台旋轉改變入射光射入稜鏡的角度,會影響反射光測量出來的強度大小,然後利用電腦儲存反射光的強度變化數據進行分析與研究。
This thesis is based on the frustrated total internal reflection and the use of prism-coupled Kretschmann configuration to the surface plasma wave stimulation. Because the water has different dielectric constants at various frequencies, which can be used to stimulate the surface of plasma waves to identify the different water at various frequencies and the depth of absorption sensitively. Th is research is using three-layer formula to do the computer simulation. The computer simulation first focuses on water of different frequencies to analyze and compare and changes the configuration of the Kretschmann metallic film thickness to observe its difference. During the tests of rays designs we first used the helium neon laser assigns out the parallel light to stimulate the surface of plasma wave’s incident photo source and used the revolving platform to change the angle of incident light injection, which will affect the intensity size of the reflected light. Finally we used computer to save the variation data of reflected light's intensity to the analysis and the research.