A long range surface plasmon-polariton resonance (LRSPPR) based refractive index sensor (for biomolecular interaction study applications) with ultrahigh sensitivity and extremely narrow resonance dips with very small full width at half maximum (FWHM, w) is proposed. The theoretical analysis of the sensitivity for spectral and angular interrogations is presented. The structure consists of a MgF 2 prism and a plasmonic waveguide (consisting of a metal cladded high index dielectric waveguide) separated by a low index dielectric layer. It is shown that both angular and spectral sensitivities increase nonlinearly with increase in analyte index. Angular sensitivity with FWHM = 0.009°, ranges from 340°/RIU to 505°/RIU for analyte index variation from 1.360 to 1.368 and spectral sensitivity with FWHM = 3 nm, ranges from 1.79 × 10 5 nm RIU −1 to 2.60 × 10 5 nm RIU −1 for analyte index variation from1.361 00 to 1.361 10. The sensitivities ...

中文翻译：

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波导控制的远程表面等离激元-折射率传感器

提出了一种基于远程表面等离振子-共振（LRSPPR）的折射率传感器（用于生物分子相互作用研究应用），具有超高灵敏度和极低的共振峰，半峰全宽非常小（FWHM，w）。提出了对频谱和角度询问灵敏度的理论分析。该结构由MgF 2棱镜和由低折射率电介质层隔开的等离子波导管（由金属包覆的高折射率电介质波导组成）组成。结果表明，随着分析物指数的增加，角度和光谱灵敏度都非线性增加。FWHM = 0.009°的角灵敏度，范围从340°/ RIU到505°/ RIU，分析物指数从1.360到1.368变化，光谱灵敏度，FWHM = 3 nm，范围1.79  × 10 5 nm RIU -1至2.60  ×  10 5 nm RIU -1适用于分析物指数从1.361 00到1.361 10.的灵敏度...