Abstract
Based on the theory of near-field optics, the principle of light transmission of optical fiber microprobe is analyzed and the theoretical data of the topography of ideal optical fiber microprobe are presented. All kinds of factors influencing probe topography are also discussed. Grounded on repeated tests, a fabrication approach of the tip of optical fiber microprobe, which is of simpleness, good repetition and easy fabrication, is formed. A method for plating Au film is developed to fulfill the requirements of high light reflectivity, chemical stability and conductivity. The result observed by SEM shows that the Au film is uniform and continuous. The good performance of light transmission of the plating-Au-film optical fiber microprobe is proved by light transmission tests.
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