光强检测型空芯光纤表面等离子体共振传感器  

Hollow Optical Fiber Surface Plasmon Resonance Sensor Based on Light Intensity Detection

作　　者：张玙[1] 朱晓松[1] 石艺尉[1] 

机构地区：[1]复旦大学信息科学与工程学院,上海200433

出　　处：《光学学报》2017年第6期57-64,共8页Acta Optica Sinica

基　　金：上海市自然科学基金(15ZR1404100)

摘　　要：提出了基于光强检测方式的空芯光纤表面等离子体共振(SPR)传感器。采用波长为532nm的激光作为光源,对所设计传感器的性能进行了研究,并采用光传输模型对传感器的性能进行了理论分析,所得理论结果与实验结果相符。传感器在线性区的最高灵敏度和最佳分辨率分别达到8380.3μW/RIU和5.5×10^(-6) RIU。相比于波长检测型空芯光纤SPR传感器,所提传感器的分辨率提高了2个数量级,且实验系统简单,有利于器件的进一步小型化。A hollow optical fiber surface plasmon resonance（SPR）sensor based on light intensity detection is proposed.The 532 nm laser is used as the light source,and the performance of the sensor is investigated.The performance of the sensor is theoretically analyzed based on the light transmission model.Experimental results are in agreement with theoretical results.The highest sensitivity of 8380.3 μW/RIU and the optimum resolution of 5.5×10^-6 RIU can be obtained by the sensor in linear region.The resolution of the proposed sensor is improved by two orders of magnitude compared to that of the hollow optical fiber SPR sensor based on wavelength detection.The experimental system is simple,and it is beneficial to miniaturization of devices.

关 键 词：传感器 空芯光纤 光强检测 表面等离子体共振 

分 类 号：TN253[电子电信—物理电子学]