使用ZnSe棱镜在可见光范围内进行大动态范围SPR测量
Large dynamic range SPR measurements in the visible using a ZnSe prism
摘要：
大的动态折射率测量范围（n = 1至n = 1.7），使用表面等离子体共振（SPR）的位移证明与ZnSe棱镜在632.8 nm处，由可用的高折射率液体主机的限制。与基于硼硅酸盐的SPR测量相比，其中角度限制将溶剂使用限制为水，并且需要相当小心地处理菲涅耳反射，ZnSe方法允许SPR光谱应用于不同范围的溶剂。根据溶剂和SPR角度，估计了角分辨率在1.5和6度之间的不确定性。对于一个给定的葡萄糖浓度在水中的折射率变化被测量为n =（0.114至0.007）每百分C6H12O6浓度。鉴于ZnSe的传输特性的过程可以很容易地扩展到中红外。
英文摘要：
Large dynamic index measurement range (n = 1 to n = 1.7) using surface plasmon resonance (SPR) shifts is demonstrated with a ZnSe prism at 632.8 nm, limited by the available high index liquid hosts. In contrast to borosilicate based SPR measurements where angular limitations restrict solvent use to water and requires considerable care dealing with Fresnel reflections, the ZnSe approach allows SPR spectroscopies to be applied to a varied range of solvents An uncertainty in angular resolution between 1.5 and 6 deg, depending on the solvent and SPR angle, was estimated. The refractive index change for a given glucose concentration in water was measured to be n = (0.114 to 0.007) per precentage C6H12O6 conc. Given the transmission properties of ZnSe the processes can be readily extended into the mid infrared.
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