In this paper the influences of the structured parameters, namely, metal layer thickness, polished depth, macrobending radius and polished angle on the refractive index sensing performances for the side-polished macrobending plastic optical fibers (POFs) based surface plasmon resonance (SPR) sensors were investigated. A simple and controllable rotary grinding technique was introduced to fabricate the proposed sensor. The performances of sensitivity, resolution and full width at half maximum (FWHM) were evaluated. The results have demonstrated that the SPR sensor performances could be improved by changing the structural parameters, and the highest sensitivity obtained was 4793.1 nm/RIU when the external refractive index was 1.410. The proposed POFs based SPR sensors are easy fabrication, robust, and compact in size, which are useful for chemical and biological sensing.

中文翻译：

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结构参数对基于侧抛光宏弯塑料光纤的表面等离子体共振传感器的影响

在本文中，结构参数，即金属层厚度、抛光深度、宏弯半径和抛光角度对基于侧抛光宏弯塑料光纤 (POF) 的表面等离子体共振 (SPR) 传感器的折射率传感性能的影响被调查。引入了一种简单且可控的旋转研磨技术来制造所提出的传感器。评估了灵敏度、分辨率和半峰全宽 (FWHM) 的性能。结果表明，通过改变结构参数可以提高SPR传感器的性能，当外折射率为1.410时，获得的最高灵敏度为4793.1 nm/RIU。所提出的基于 POF 的 SPR 传感器易于制造、坚固且尺寸紧凑，