A novel SPR biosensor that can achieve a high sensitivity is proposed; therefore, a new prism coupling structure based on metal nanowires array layer is designed in this paper. The thickness of each medium layer for the structure is analyzed to obtain the optimal SPR spectrum, by the finite element method, so that the sensitivity is able to be enhanced greatly. The optimal thicknesses of each medium layer are given, and the sensitivity of the SPR biosensor can reach as high as 210.75°/RIU for the refractive index of the sensing medium, from 1.30 to 1.38.

中文翻译：

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ZnO / MoS2纳米线阵列层与氧化石墨烯纳米片的高灵敏度基于生物传感器的增强型SPR

提出了一种可以实现高灵敏度的新型SPR生物传感器。因此，本文设计了一种基于金属纳米线阵列层的新型棱镜耦合结构。通过有限元方法分析结构的每个介质层的厚度，以获得最佳的SPR光谱，从而可以大大提高灵敏度。给出了每个介质层的最佳厚度，对于感应介质的折射率，SPR生物传感器的灵敏度可以从1.30到1.38达到210.75°/ RIU。