报告题目: Structure and Dynamics of Molecular Surfaces and Interfaces: Recent Developments and New Opportunities with Nonlinear Vibrational Spectroscopy

报告人: Prof. Hongfei Wang, Pacific Northwest National Laboratory

报告时间：2015年9月2日(星期三)10:00－11:00 AM

报告地点：上海市四平路1239号太阳成集团化学馆239室

报告摘要：There have been many applications of surface nonlinear vibrational spectroscopy, i.e. sum-frequency generation vibrational spectroscopy (SFG-VS), in obtaining chemical structure and bonding, as well as dynamic interactions, of molecular surfaces/interfaces. The potential of SFG-VS in studies of complex molecular systems at surfaces/interfaces can be greatly expanded with the recent development of the high-resolution broadband sum-frequency generation vibrational spectroscopy (HR-BB-SFG-VS, which was realized by combining the infrared and visible pulses at the time and frequency resolution limit, as it allows measurement of the nearly intrinsic lineshape of the SFG vibrational spectra. In this talk, the principle and concept of the SFG lineshape, phase and polarization, the three flavors that make SFG-VS a unique quantitative spectroscopic tool for surface/interface and spectroscopic studies, shall be demonstrate with a set of examples, with liquid, catalytic and chiral surfaces, etc.