IMR: Acquisition of a Sum Frequency Generation (SFG) Spectrometer for Surface Spectroscopic Research and Student Training

IMR：购买和频发生 (SFG) 光谱仪用于表面光谱研究和学生培训

• 批准号: 0216904
• 负责人: Jan Miller
• 金额: $ 17.47万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216904&HistoricalAwards=false
• 关键词: IMR; Acquisition; Sum; Frequency; Generation

The award from the Instrumentation for Materials Research program (IMR) will be used to acquire a state-of-the-art Sum Frequency Generation (SFG) spectrometer at the University of Utah. SFG is the only truly interface-specific vibrational spectroscopic technique. The symmetry constraints on SFG prohibit nonlinear interactions in the bulk, while at an interface, such processes are allowed due to the local break in symmetry. As a result, the spectroscopy of molecules residing in the interfacial region can be probed selectively without any contributions from the molecules present in the more pervasive bulk phases. Analysis of SFG spectra can yield information on population, structure, and orientation of interfacial species with a nanometer in-depth resolution. Researchers from a variety of disciplines such as materials science, metallurgical engineering, chemistry, bioengineering, and polymer science, will use this equipment for advanced research and education. The research will study interfaces in polymer nanocomposites and self-assembling polymer and surfactant materials, as well as, probe the conformation and orientation of surface confined protein species. The investigation of adsorption phenomena and interfacial water structure at different technologically important interfaces will be an important new contribution. The studies will have far-reaching implications in many fields of nanotechnology, surface chemistry, biology and medicine and will advance our understanding of interfacial phenomena thus enabling new technological applications. The research is likely to result in the discovery of new interfacial structures, as well as, in deeper understanding and explanation of novel effects at solid/liquid, solid/gas and liquid/gas interfaces. A number of graduate students from different departments will work with the SFG spectrometer and receive important training in the advanced fields of laser surface and nonlinear spectroscopy. %%%The award from the Instrumentation for Materials Research program (IMR) will be used to acquire a state-of-the-art Sum Frequency Generation (SFG) spectrometer at the University of Utah. SFG is the only truly interface-specific vibrational spectroscopic technique.. Researchers from a variety of disciplines such as materials science, metallurgical engineering, chemistry, bioengineering, and polymer science, will use this equipment for advanced research and education. The research will study interfaces in polymer nanocomposites and self-assembling polymer and surfactant materials, as well as, probe the conformation and orientation of surface confined protein species. The investigation of adsorption phenomena and interfacial water structure at different technologically important interfaces will be an important new contribution. The studies will have far-reaching implications in many fields of nanotechnology, surface chemistry, biology and medicine and will advance our understanding of interfacial phenomena thus enabling new technological applications. The research is likely to result in the discovery of new interfacial structures, as well as, in deeper understanding and explanation of novel effects at solid/liquid, solid/gas and liquid/gas interfaces. A number of graduate students from different departments will work with the SFG spectrometer and receive important training in the advanced fields of laser surface and nonlinear spectroscopy.

材料研究仪器仪表计划 (IMR) 的奖金将用于在犹他大学购买一台最先进的和频发生 (SFG) 光谱仪。 SFG 是唯一真正针对特定界面的振动光谱技术。 SFG 的对称约束禁止体中的非线性相互作用，而在界面处，由于对称性的局部破缺，这种过程是允许的。因此，可以选择性地探测界面区域中分子的光谱，而不需要来自更普遍的体相中存在的分子的任何贡献。 SFG 光谱分析可以产生具有纳米深度分辨率的界面物种的数量、结构和方向的信息。来自材料科学、冶金工程、化学、生物工程和聚合物科学等多个学科的研究人员将使用该设备进行高级研究和教育。该研究将研究聚合物纳米复合材料以及自组装聚合物和表面活性剂材料中的界面，并探讨表面限制蛋白质种类的构象和方向。对不同技术重要界面的吸附现象和界面水结构的研究将是一个重要的新贡献。这些研究将对纳米技术、表面化学、生物学和医学的许多领域产生深远的影响，并将增进我们对界面现象的理解，从而实现新技术应用。该研究可能会发现新的界面结构，并更深入地理解和解释固/液、固/气和液/气界面的新效应。来自不同院系的多名研究生将使用SFG光谱仪，并接受激光表面和非线性光谱先进领域的重要培训。 %%%材料研究仪器仪表计划 (IMR) 的奖金将用于在犹他大学购买一台最先进的和频生成 (SFG) 光谱仪。 SFG 是唯一真正的界面特定振动光谱技术。来自材料科学、冶金工程、化学、生物工程和聚合物科学等多个学科的研究人员将使用该设备进行高级研究和教育。该研究将研究聚合物纳米复合材料以及自组装聚合物和表面活性剂材料中的界面，并探讨表面限制蛋白质种类的构象和方向。对不同技术重要界面的吸附现象和界面水结构的研究将是一个重要的新贡献。这些研究将对纳米技术、表面化学、生物学和医学的许多领域产生深远的影响，并将增进我们对界面现象的理解，从而实现新技术应用。该研究可能会发现新的界面结构，并更深入地理解和解释固/液、固/气和液/气界面的新效应。来自不同院系的多名研究生将使用SFG光谱仪，并接受激光表面和非线性光谱学先进领域的重要培训。