光学学报, 2012, 32 (6): 0628001, 网络出版: 2012-05-16   

基于表面等离子体共振原理的空芯光纤传感器 下载: 553次

Hollow Optical Fiber Sensor Based on Surface Plasmon Resonance
作者单位
复旦大学信息科学与工程学院, 上海 200433
摘要
设计了一种基于表面等离子体共振原理,使用空芯光纤作为光波导、外表面镀金属膜的光学材料圆柱体作为探头的新型折射率传感器。通过建立光学模型进行分析,在理论上推导出了这种传感器的传输光谱损耗公式,并针对该传感器在不同的光纤长度、探头材料、检测物质折射率等参数设置下的检测性能进行了分析,获得了各种参数对其性能的影响。由于该传感器可针对不同折射率的检测物质灵活地更换合适探头材料,相对于传统的表面等离子体共振光纤传感器,在易用性和性价比等方面具有更好的应用价值。
Abstract
A new kind of hollow optical fiber sensor based on surface plasmon resonance (SPR) is designed. The performance of the designed sensor is theoretically analyzed with a ray model theory. The influences of different configurations of the sensor are also analyzed. It is shown that this hollow optical fiber SPR sensor is more flexible in use than conventional fiber SPR sensors because it can change sensing probes to fit sensing medium with different refractive indexes.
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赵华新, 蒋永翔, 罗天穹, 朱晓松, 石艺尉. 基于表面等离子体共振原理的空芯光纤传感器[J]. 光学学报, 2012, 32(6): 0628001. Zhao Huaxin, Jiang Yongxiang, Luo Tianqiong, Zhu Xiaosong, Shi Yiwei. Hollow Optical Fiber Sensor Based on Surface Plasmon Resonance[J]. Acta Optica Sinica, 2012, 32(6): 0628001.

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