National Taiwan Ocean University Institutional Repository:Item 987654321/47448
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题名: Nano Fiber-Optic Sensor based on the Excitation of Surface Plasmon Wave Near Fiber Tip
作者: Chang YJ
Chen YC
Kuo HL
Wei PK
贡献者: 國立臺灣海洋大學:光電科學研究所
日期: 2006-03
上传时间: 2018-07-23T03:51:24Z
出版者: J. Biomedical Optics
摘要: Abstract: We present a sensitive nano-optical fiber biosensor made by shaping a fiber to form a taper with a tip size under 100 nm. A 40-nm-thick layer of gold is coated around the tapered fiber and a surface plasmon wave is excited near the tip to achieve a sensitivity of the reflective index unit of approximately 4000 (% RIU(-1)) in the intensity measurement. A 3-D coded finite-difference time-domain approach verifies the excitation of the surface plasmon wave and the differences among its intensities in media of various refractive indices. The nanotip fiber sensor has the merits of a low background light and an ultrasmall detection region. Only a microliter of sample solution is required for detection.
關聯: 11(1)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47448
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