材料科学
折射率
等离子体子
光电子学
波导管
表面等离子共振
光学
表面等离子体子
高折射率聚合物
局域表面等离子体子
表面等离子体激元
波长
作者
Yazusha Sharma,Rukhsar Zafar,Lokesh Tharani,Mohammad Salim
标识
DOI:10.1016/j.matpr.2020.06.110
摘要
Abstract In this paper, an Ag-SiO2-Ag based Metal-Insulator-Metal (MIM) plasmonic waveguide is investigated for Refractive Index sensing based applications. Dual resonators coupled to MIM waveguide is filled with material under sensing and the refractive index of the material is varied in the steps of 0.02 refractive index unit (RIU). The sensor is numerically analyzed using Finite difference in Time domain (FDTD) method. The interaction between resonators is observed and the sensitivity is measured. The sensitivity which is defined as change in resonance condition for per unit change in Refractive index unit (RIU) is obtained as high as 1145 nm/RIU. Proposed sensor finds its applicability in different refractive index based chemical and biological sensing.
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