研究目的
Investigating the performance of surface plasmon resonance (SPR) and lossy mode resonance (LMR) based fiber optic sensors utilizing silver and indium oxide layers.
研究成果
The study demonstrates that indium oxide can be used as an LMR active material, showing higher sensitivity and figure of merit compared to silver-coated fiber optic sensors. The findings suggest potential applications in chemical and biochemical sensing, with indium oxide offering advantages over silver in terms of sensitivity and performance.
研究不足
The study is limited to the visible part of the electromagnetic spectrum and the use of sucrose solutions for refractive index variations. The chemical stability and oxidation of silver coatings are also noted limitations.
1：Experimental Design and Method Selection:
The study involves the fabrication of different fiber optic sensing probes coated with single and double layers of silver and indium oxide to investigate their sensitivity towards surrounding refractive index variations.
2：Sample Selection and Data Sources:
Different concentrations of sucrose solutions were used to measure the refractive index variations.
3：List of Experimental Equipment and Materials:
Multi-moded plastic cladded silica (PCS) core fiber, silver, indium oxide, flow cells, spectrometer and detector, fiber optic cables, Abbe's refractometer.
4：Experimental Procedures and Operational Workflow:
Fabrication of fiber optic probes, thin film deposition using thermal evaporation technique, sample preparation, measuring refractive index with a refractometer, and experimental setup for recording transmission spectra.
5：Data Analysis Methods:
Sensitivity and figure of merit were calculated to evaluate the performance of the fabricated sensors.
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