Transient 2D IR (infra-red) and EA (electronic absorption) spectrometer system

我们申请了一个瞬态二维IR（红外）和EA（电子吸收）光谱仪系统，该系统由两个合适的OPAs泵浦激光器、二维EA光谱仪、二维IR光谱仪和瞬态吸收附加组成。该仪器在大学内部以及与其他学术合作伙伴的各种跨学科和跨学院倡议中发挥着关键作用。除了已经存在的时间分辨的一维光谱之外，提出的二维光谱设置可以更详细地回答有关不同电子或振动状态之间如何发生转变的问题，并提供独特的结构和动力学信息。一方面，为了进行最先进的测量，并将我们的重点放在化学实验上，而不是开发和/或建造我们自己的光谱仪，另一方面，我们的目标是基于脉冲整形技术建立良好的商用光谱仪系统。利用所要求的二维光谱仪系统，我们可以在整个可见范围内进行二维光谱分析，重点关注电子状态之间的转变。关于红外范围，我们将能够跟踪1000 - 3850 cm-1 （2600 - 10000 nm）范围内的振动动力学，这将非常适合设想的项目。

We apply for a transient 2D IR (infra-red) and EA (electronic absorption) spectrometer system consisting of a pump laser with two suitable OPAs, 2D EA spectrometer, 2D IR spectrometer, and the transient absorption add on. The instrument is key in various interdisciplinary and interfaculty initiatives within the university and with other academic cooperation partners. In addition to the already existing time-resolved 1D spectroscopies the proposed 2D spectroscopy setup can answer questions regarding how transitions between different electronic or vibrational states take place in more detail and provides both unique structural and kinetic information. In order to perform state of the art measurements, on one hand, and to keep our focus on the chemical experiments rather on developing and/or building our own spectrometer, on the other hand, we aim for well established commercially available spectrometer systems based on the pulse shaping technology. With the requested 2D spectrometer systems we could perform 2D spectroscopy throughout the complete visible range with the focus on the transitions between electronic states. Regarding the IR range we will be able to follow vibrational dynamics in the range 1000 – 3850 cm-1 (2600 – 10000 nm) which will be perfectly suited for the envisioned projects.