论文部分内容阅读
理论模拟并实验制作了一种基于波长调制的高灵敏度的锥型光纤探头表面等离子体共振传感器。理论上研究了锥型探头的锥度比(TR)与传感器灵敏度和检测精度的关系,结果表明,随着锥度比的增加,传感器灵敏度上升,精确度下降。综合考虑这两个指标,当TR在1.2至1.8之间时,传感器有较高的性能。在理论设计的基础上,实验制作了锥型探头,并且搭建了实验系统,实验结果显示,传感器灵敏度达到3.94μm/RIU(RIU表示折射率单位),与理论模拟值(3.90μm/RIU)符合得很好。
Theoretical simulation and experimental production of a high sensitivity based on wavelength modulation tapered fiber probe surface plasmon resonance sensor. The relationship between taper ratio (TR) of taper probe and sensor sensitivity and detection accuracy is theoretically studied. The results show that with the increase of taper ratio, the sensor sensitivity increases and the accuracy decreases. Considering these two indicators, the sensor has higher performance when TR is between 1.2 and 1.8. Experimental results show that the sensitivity of the sensor reaches 3.94μm / RIU (RIU means the refractive index unit), which conforms to the theoretical simulation value (3.90μm / RIU). Based on the theoretical design, a conical probe is fabricated experimentally. Very well.