Analytical Applications of Coherent Two Dimensional Vibrational Spectroscopy

威斯康星大学麦迪逊分校的约翰·赖特教授在分析和表面化学项目的支持下研究了相干二维振动光谱学。该小组首创的双振动增强（DOVE）四波混频（FWM）方法将被新的双简并FWM方法所补充，例如使用两个可调谐红外激光器来驱动三个红外跃迁和第四个输出光束。这些方法将以各种方式用于探索分析测量的相干二维方法的效用。在复杂混合物中实现了谱线窄化和选择性组分增强等优点，缓解了当前振动光谱学中频谱拥挤等问题。氢键液体将被研究。红外光谱学通常用于分析研究和监测工业过程。例如，新的基于激光的光谱方法可能使蛋白质的红外光谱更易于处理，这将用于基础和应用生物化学和生物技术研究。

Professor John Wright of the University of Wisconsin-Madison is supported by the Analytical and Surface Chemistry Program to study coherent two-dimensional vibrational spectroscopy. Doubly vibrationally enhanced (DOVE) four wave mixing (FWM) methods pioneered by this group will be complemented by new doubly degenerate FWM methods, such as the use of two tunable infrared lasers to drive three infrared transitions and a fourth output beam. These methods will be used in a variety of ways to explore the utility of coherent two dimensional methods for analytical measurements. Certain advantages such as line-narrowing and selective component enhancement in complex mixtures can be achieved, relieving current problems in vibrational spectroscopy such as spectral congestion. Hydrogen bonded liquids will be studied. Infrared spectroscopy is commonly used to study and monitor industrial processes analytically. New laser-based spectroscopic methods can potentially make more tractable the IR spectroscopy of proteins, for example, which will be of use in basic and applied biochemical and biotechnological research.