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

这份来自材料研究仪器项目（IMR）的合同将用于购买犹他大学最先进的和频率产生（SFG）光谱仪。SFG是唯一真正针对界面的振动光谱技术。SFG的对称性约束禁止体内的非线性相互作用，而在界面处，由于局部对称性的破坏，这种过程是允许的。因此，可以选择性地探测驻留在界面区域的分子的光谱，而不需要存在于更普遍的体相中的分子的任何贡献。分析SFG光谱可以获得纳米深度分辨率的界面物质的分布、结构和取向信息。来自不同学科的研究人员，如材料科学、冶金工程、化学、生物工程和聚合物科学，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和自组装聚合物与表面活性剂材料的界面，以及探测表面受限蛋白的构象和取向。研究不同技术重要界面上的吸附现象和界面水结构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，并将促进我们对界面现象的理解，从而实现新的技术应用。这项研究可能会导致新的界面结构的发现，以及对固体/液体、固体/气体和液体/气体界面上的新效应的更深入的理解和解释。一批来自不同院系的研究生将使用SFG光谱仪，接受激光表面和非线性光谱学等先进领域的重要培训。这份来自材料研究仪器项目（IMR）的合同将用于购买犹他大学最先进的和频率产生（SFG）光谱仪。SFG是唯一真正针对界面的振动光谱技术。来自不同学科的研究人员，如材料科学、冶金工程、化学、生物工程和聚合物科学，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和自组装聚合物与表面活性剂材料的界面，以及探测表面受限蛋白的构象和取向。研究不同技术重要界面上的吸附现象和界面水结构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，并将促进我们对界面现象的理解，从而实现新的技术应用。这项研究可能会导致新的界面结构的发现，以及对固体/液体、固体/气体和液体/气体界面上的新效应的更深入的理解和解释。一批来自不同院系的研究生将使用SFG光谱仪，接受激光表面和非线性光谱学等先进领域的重要培训。

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.