研究目的
Investigating the sensing properties of a silicon-based hybrid plasmonic microring resonator for applications in label-free optical sensing.
研究成果
The silicon-based hybrid plasmonic microring resonator demonstrates high Q factor, small mode volume, and large refractive index sensitivity, making it suitable for micro-/nanosensing applications. The structure's performance can be controlled by tuning its dimensions, offering a balance between sensitivity and detection limit.
研究不足
The study focuses on theoretical analysis using FEM, and practical fabrication challenges and experimental validation are not addressed. The trade-off between high Q factor and sensitivity may limit the optimization of the sensor's performance.
1：Experimental Design and Method Selection:
The study employs a finite element method (FEM) to analyze the mode properties (Q factor, mode volume, energy ratio, and sensitivity) of the proposed hybrid plasmonic microresonator.
2：Sample Selection and Data Sources:
The structure consists of a silicon-on-insulator (SOI) ring separated from a silver nanoring by a low-permittivity dielectric.
3：List of Experimental Equipment and Materials:
The materials include silicon (Si), silver (Ag), and silica (SiO2).
4：2). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The performance of the hybrid microcavity is analyzed considering different structure geometries, including the thickness of the nanoslot and the radius of the silver nanoring.
5：Data Analysis Methods:
The Q factor, mode volume, and sensitivity are calculated based on the electromagnetic field distribution and energy density.
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