研究目的
Investigating the performance of a round-tower plasmonic tip based on an optical microfiber for nanofocusing with high field enhancement.
研究成果
The RT plasmonic tip based on an optical microfiber achieves significant field enhancement and nanofocusing, promising for applications in various fields such as scanning near-field optical microscopy and biosensing. The study provides insights into optimizing the tip's performance through geometric and material adjustments.
研究不足
The study is primarily theoretical and simulation-based, with potential limitations in practical fabrication and experimental validation of the proposed RT plasmonic tip.
1：Experimental Design and Method Selection:
The study employs theoretical analysis and finite-element simulation to investigate the operation principle and near-field performance of the RT plasmonic tip.
2：Sample Selection and Data Sources:
The study focuses on an RT plasmonic tip based on an optical microfiber, with specific geometric and material parameters.
3：List of Experimental Equipment and Materials:
The simulation uses COMSOL Multiphysics
4：3 software for finite-element method simulations. Experimental Procedures and Operational Workflow:
The simulation involves setting up a 2D axisymmetric model with specific boundary conditions to analyze the TM modes and their interaction with the plasmonic tip.
5：Data Analysis Methods:
The analysis includes calculating the field enhancement factor and full width at half maximum to evaluate the focusing performance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
