Surface plasmon resonance based fiber optic sensor using an additional layer of platinum: A theoretical study
详细信息 查看全文
- 作者：Navneet K. Sharma ; navneetk.sharma@jiit.ac.in ; Sarika Shukla ; Vivek Sajal
- 关键词：Surface plasmon resonance ; Optical fiber ; Sensor ; Pt
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：133
- 期：Complete
- 页码：43-50
- 全文大小：1449 K
- 卷排序：133
文摘
Surface plasmon resonance (SPR) based fiber optic sensor with bimetallic layers of Au/Ag/Cu-Pt is theoretically studied. The outer Pt layer over Au/Ag/Cu layer is shown to enhance the sensitivity of SPR sensor. For a fixed thickness of Au/Ag/Cu layer, the sensitivity increases with increase in Pt layer thickness. Sensitivity also enhances with increase in thickness of Au/Ag/Cu layer for all thicknesses of Pt layers. Besides, Au-Pt bimetallic layers based SPR sensor possesses higher sensitivity than that of Ag-Pt and Cu-Pt bimetallic layers. 50 nm Au–20 nm Pt based SPR sensor exhibits maximum sensitivity of 3571 nm/RIU.