Luo Wei, Wang Rujing, Li Hairong, Kou Jieting, Zeng Xinhua, Huang He, Hu Xiaobo, Huang Wei
Opt Express. 2019 Jan 21;27(2):576-589. doi: 10.1364/OE.27.000576.
A detailed theoretical model is provided to analyze the effects of temperature on prism-based surface plasmon resonance (SPR) sensors, including temperature dependence of the metal and prism. A complete sensitivity matrix simultaneously measures variations in refractive index (RI) and temperatures using measurements at two wavelengths for the angular-interrogation mode, or at two angles of incidence for the wavelength-interrogation mode. Correction of matrix coefficients improves accuracy of the two modes. Validation is performed using a self-designed wavelength SPR system with an adjustable incident angle perform. This method provides a new way to detect the RI and may lead to the better design and fabrication of prism-based SPR sensors.
提供了一个详细的理论模型来分析温度对基于棱镜的表面等离子体共振（SPR）传感器的影响，包括金属和棱镜的温度依赖性。一个完整的灵敏度矩阵在角度询问模式下使用两个波长的测量值，或在波长询问模式下使用两个入射角的测量值，同时测量折射率（RI）和温度的变化。矩阵系数的校正提高了两种模式的精度。使用具有可调入射角的自行设计的波长SPR系统进行了验证。该方法为检测RI提供了一种新途径，并可能有助于基于棱镜的SPR传感器的更好设计和制造。
