期刊
OPTICAL AND QUANTUM ELECTRONICS
卷 54, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/s11082-022-03700-0
关键词
SPR sensor; Infrared spectrum; PCF; Titanium dioxide
资金
- Deanship of Scientific Research, Taif University Researchers Supporting Project [TURSP-2020/08]
- Taif University, Taif, Saudi Arabia
The research article describes a graphene-metal composition based SPR sensor using PCF with dual-core, which provides wideband constant SPR response for low refractive sensors. The sensor offers sensitivity variations over a wide operating band, making it suitable for detection in various analyte areas.
The research article represents the graphene-metal composition based surface plasmon resonance (SPR) sensor using photonic crystal fiber (PCF) with dual-core to cover applications of low refractive sensors. The outer side of PCF structure plasmonic material silver (Ag) is placed and the oxidation layer of titanium dioxide (TiO2) is placed on the upper surface of the plasmonic layer. The graphene provides high conductivity values for the infrared spectrum. The overall structure of the PCF provides the wideband constant SPR response for the lower refractive index value of the analyte. This sensor is numerically investigated over 1.5-1.9 mu m of the operating wavelength. This structure offers the 500-4250 nm/RIU sensitivity variation with the wide operating band. The suggested structure may be used in a variety of analyte detection areas, including biosensor design, organic chemical sensor design, and pharmaceutical inspection.
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