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首页> 外文会议>International Conference on Optics and Photonics 2015 >A self-referencing surface plasmon resonance sensor
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A self-referencing surface plasmon resonance sensor

机译：自参考表面等离子体共振传感器

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摘要

A zero cross sensitivity (CS) deliverable self-referencing (S-R) surface plasmon resonance sensor (SPR) experimental scheme is presented based on the retroreflecting prism configuration with single spectroscopic read out. The relationship between external and internal incident angle in retroreflection configuration results in the excitation of two spectroscopically distinct surface plasmons (SPs) modes corresponding to each side of the prism. The characteristics of two SPs modes are independent and thus used in differential refractive index (RI) sensing via S-R modes technique. By applying SR sensing theory, it is shown that the CS can be minimized to zero through the demonstrated configuration. This configuration is flexible for using in wavelength interrogation measurement method as well. The excited SPs modes are also tunable to acquire either identical or non-identical sensitivity by selecting corresponding metal film thickness on the either sides of the prism. From the preliminary experimentation on SR configuration and theoretical investigation on deliverability of zero CS, it can be expected that the presented scheme is a better SR configuration for high accurate differential RI sensing applications.
机译：提出了一种基于零反射灵敏度（CS）的可传递自参考（S-R）表面等离子体共振传感器（SPR）的实验方案。在逆向反射配置中，外部入射角和内部入射角之间的关系导致激发了两个在光谱上不同的表面等离激元（SP）模式，分别对应于棱镜的每一侧。两种SP模式的特性是独立的，因此可通过S-R模式技术用于差分折射率（RI）传感。通过应用SR传感理论，可以证明通过演示的配置，CS可以最小化为零。该配置也可以灵活地用于波长询问测量方法中。通过选择棱镜两侧的相应金属膜厚度，激发的SPs模式也可以调整为获得相同或不同的灵敏度。从SR配置的初步实验和零CS的可传递性的理论研究来看，可以预期的是，该方案是用于高精度差分RI传感应用的更好的SR配置。

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