In this report, a novel D-shaped long-range surface plasmon resonance (LRSPR) fiber base sensor has been introduced. The demonstration of proposed sensor involves two D-shaped silver-coated models to study the sensitivity responses. The entire study with the constructed models is based on a single-mode fiber. The models are multilayered consisting of metal, dielectric, and analyte as separate layers. Silver (Ag) and magnesium fluoride (MgF2) strips are used as metal and dielectric layers respectively. The constituency of analyte as an interface excellently standardized the models for sensitivity detection. In this report, a large range of analyte refractive indices (RI) which varies from 1.33 to 1.38 is appraised for the proposed models to characterize the sensitivity. The entire context is encompassed by the wavelength region from 450 to 850 nm with an interval of 20 nm. Sensitivities in this report are measured based on the analyte position from the core and metal for both models. For each of the two models, the analyte is placed as the top layer. RIs of the applied metal (Ag) are measured using the Drude-Lorentz formula. The simulated sensitivities for model-1 and model-2 vary from 6.3 × 10³ nm/RIU to 8.7 × 10³ nm/RIU.

在本报告中，介绍了一种新型 D 形远程表面等离子体共振 (LRSPR) 光纤基础传感器。拟议传感器的演示涉及两个 D 形镀银模型，以研究灵敏度响应。构建模型的整个研究基于单模光纤。这些模型是多层的，由金属、电介质和分析物作为单独的层组成。银 (Ag) 和氟化镁 (MgF2) 条分别用作金属和介电层。分析物的选区作为界面极好地标准化了灵敏度检测模型。在本报告中，对从 1.33 到 1.38 不等的大范围分析物折射率 (RI) 进行了评估，以用于所提出的模型来表征灵敏度。整个上下文包含在 450 到 850 nm 的波长范围内，间隔为 20 nm。本报告中的灵敏度是根据两种模型的核心和金属的分析物位置测量的。对于这两个模型中的每一个，分析物都被放置在顶层。使用 Drude-Lorentz 公式测量应用金属 (Ag) 的 RI。模型 1 和模型 2 的模拟灵敏度从 6.3 × 10 不等³  nm/RIU 至 8.7 × 10 ³  nm/RIU。