面向微纳尺度实验力学分析的针尖增强近场拉曼光谱测试系统

项目名称： 面向微纳尺度实验力学分析的针尖增强近场拉曼光谱测试系统

项目编号： No.11272232

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 仇巍

作者单位： 天津大学

项目金额： 106万元

中文摘要： 近场拉曼光谱技术是一种新的具有广泛应用需求的微纳尺度实验力学手段，然而将现有的相关仪器用于力学研究存在较大困难，亟需开发专门适用于微纳尺度力学测量与表征的近场拉曼设备与相关实验装置。本项目面向微纳尺度材料与器件的实验力学分析，拟研发一套小型化、多平台兼容的针尖增强近场拉曼光谱实验测试系统。本研究在改造扫描探针平台基础上，开发、组建包括背反、透射和侧向的拉曼入散射传导组件及其相关控制系统并设计、加工微加载与夹持装置，组装整体系统、调试其各项功能并完成关键技术指标的标定，解决实验系统中包括多重控制、灵敏度稳定与分辨率优化、近/远场光谱力学信息解耦与识别等关键技术问题，在此基础上提出基于所研发仪器系统的纳观尺度力学参量/分量精细分析与微-纳尺度力学参量协同测量实验方法，最后将系统应用于典型微纳米材料与结构多尺度力学性能实验研究，并通过应用实验反馈改进所研发的实验仪器系统。

中文关键词： 针尖增强拉曼；光谱实验力学；力学测量系统；维纳尺度；仪器研发

英文摘要： Near-field Raman spectroscopy is prospective to be a new and robust method for experimental mechanics in micro-nano scale. However, the currently existing instruments are hardly applicable for mechanical studies, hence there is a need for developing a new near-field Raman equipment, and its accessories as well, specially suitable for micro-nano mechanical measurements and characterizations. This proposal is intend to investigate a set of miniaturized and multi-compatible tip-enhanced near-field Raman spectroscopy system for experimental mechanics in micro-nano scale. Based on the modification of a scan-probe apparatus, the work will build up the backscattering, transmission and lateral scattering Raman conducting components and its associated control systems; design and prosess the micro-loading and clamping devices; and then assemble the overall system, debug all of its functions and complete the calibrations of key parameters. In the research, some pivotal technical problems are going to be solved, such as the multi-control, the stability of the sensitivity, and the optimization of the resolution, the decoupling and recognition of the near field/far-field spectral data, and so on. Based on above, the methodologies for the nanoscale mechanical parameter components analysis, and then the micro-nanoscale collabor

英文关键词： Tip-enhanced Raman；spectral experimental mechanics；mechanical measurement system；micro-nano scale；Instrument development