In this paper, we demonstrate a novel salinity sensor based on Tamm-plasmon-polariton (TPP), comprising different shapes of Bragg reflector (ordinary, texturing, and sawtooth) and metallic layer. The finite element method is used to study the considered structure and sensing performance by using the COMSOL multiphysics simulation procedure. Here, we study the effect of surface morphology on the sensitivity; firstly, in the case of one-dimensional photonic crystal-centered defect, it harms the sensitivity; secondly, texturing and sawtooth in the case of Tamm resonance increases the sensitivity, as for texturing the surface, the sensitivity quality factor (Q) = 236 and figure of merit (FOM) = 170. For sawtooth surfaces, Q = 272.4, and FOM = 199. The consequences of structural parameters on the efficiency of sensing are studied, and new procedures are proposed to enhance TPP-based sensors. A simple and functional alternative to conventional salinity sensors may be the proposed solution.

在本文中，我们展示了一种基于 Tamm-等离子体激元 (TPP) 的新型盐度传感器，包括不同形状的布拉格反射器（普通、纹理和锯齿）和金属层。有限元方法用于通过 COMSOL 多物理场仿真程序研究所考虑的结构和传感性能。在这里，我们研究了表面形态对灵敏度的影响；首先，对于一维光子晶体中心缺陷，它会损害灵敏度；其次，在 Tamm 共振的情况下，纹理和锯齿会增加灵敏度，对于纹理表面，灵敏度品质因数 ( Q ) = 236 和品质因数 ( FOM ) = 170。对于锯齿表面，Q  = 272.4 和FOM = 199。研究了结构参数对传感效率的影响，并提出了新的程序来增强基于 TPP 的传感器。建议的解决方案可能是传统盐度传感器的一种简单而实用的替代方案。