TRANSIENT INFRARED SPECTROSCOPY

红外光谱允许访问的振动水平， 分子，从而允许研究在过程中形成的中间体 光学触发事件 这项研究涉及的发展， 高重复率红外光谱法研究蛋白质 通过中间态的振动光谱的动力学。 的 这一努力的推力是光学参量的设计 使用硫代镓酸银和镓的发生器/放大器系统 硒化物晶体 这个设计，现在已经实现了。 它使 获取500到500范围内的瞬时红外光谱 3000 cm-1。 系统使用KTP和BBO OPA来填充区域 从3000到10,000 cm-1。 这个激光系统经过重新设计， 产生极短的可见光脉冲（20 fs）和红外（40 fs） 辐射

Infrared spectroscopy allows access to the vibrational levels of molecules and thus permits the study of intermediates formed during optically triggered events. This research concerns the development of high repetition rate infrared spectroscopy aimed at studying protein dynamics via the vibrational spectra of the intermediate states. The thrust of this effort is the design of an optical parametric generator/amplifier system using silver thiogallate and gallium selenide crystals. This design, which is now implemented. It enables the acquisition of transient infrared spectra over the range 500 to 3000 cm-1. The system uses KTP and BBO OPA's to fill in the region from 3000 to 10,000 cm-1. This laser system has been redesigned to generate extremely short pulses (20fs) of visible and (40fs) infrared radiation.