JOURNAL ARTICLE

Side-grinding U-shaped gold sputter plastic fiber SPR sensor

Zhou JianqiaoJing NingZhibin WangLi Kewu

Year: 2019 Journal:   Journal of Applied Optics Vol: 40 (3)Pages: 511-516   Publisher: ying yong guang xue bian ji bu

Abstract

为了测量溶液折射率变化,对塑料光纤纤芯表面的纤芯-金层-液体的3层膜结构进行研究,制作了一种使用U型结构并结合侧边抛磨方法的表面等离子体共振传感器。将截取的一段塑料光纤弯曲成为U型,并在烘箱中通过较高温度使这段光纤的曲率固定,对弯曲部分的外表面进行抛光,暴露该位置塑料光纤芯层并在其上溅射金纳米薄膜层,将制备好的传感器浸入不同折射率的液体中,使用光谱分析仪观察光谱的移动。实验结果表明:当塑料光纤SPR传感器测量折射率变化范围在1.333~1.406的液体时,可以通过光谱观察到随着液体折射率的增大,等离子体共振吸收峰位置也不断地向波长增大的方向移动,并且二者之间存在线性关系,其灵敏度为7.5×10-4 RIU/nm。该传感器探头具有灵敏度高、小型化、易制备、低成本的特点。

Keywords:
Materials science Sputtering Grinding Fiber Sputter deposition Composite material Optoelectronics Nanotechnology Thin film

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Citation History

Topics

Advanced Fiber Optic Sensors
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Analytical Chemistry and Sensors
Physical Sciences →  Chemical Engineering →  Bioengineering
Acoustic Wave Resonator Technologies
Physical Sciences →  Engineering →  Biomedical Engineering

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