Investigation of Phase-Shift Interferometry Surface Plasmon Resonance Imaging System

• Main Authors: Chi-Xian Chen, 陳祈先
• Other Authors: Wen-Kai Kuo
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/wnv4z2

碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 100 === The study is to conduct the phase response of the sensitivity of SPR. The researcher used nanoimprint lithography to imprint a grating and plated AU by Thermal Evaporation on the top of the grating to make a grating-coupled SPR. A cylindrical lens in an optical path can help the incident light to focus and to produce multiple incident angles. At the same plane, it can get the luminous intensity of the reflected light in different incident angle to become the intensity of the SPR image system. To detect phase changes, the researcher used a phase-shift method, LCD, and a LCD controller to make polarization produce certain phase differential, which can automatically capture the images with Labview, a webcam, and a computer. First, the researcher used Labview to call a dynamic link library and connected a webcam to capture five interference images. Then, with the image process, the researcher used a self-designed med-filter and a curve fitting to lower noise; then, made an algorithm to get a phase response diagram, by analyzing the five images.