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

我们应用了一个由泵浦激光器和两个合适的OPA组成的瞬时二维红外(IR)和电子吸收(EA)光谱仪系统，以及2D EA光谱仪、2D IR光谱仪和瞬时吸收光谱仪。该工具在大学内部以及与其他学术合作伙伴的各种跨学科和跨教职员工倡议中发挥着关键作用。除了已有的时间分辨1D光谱仪之外，建议的2D光谱学装置还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跃迁的问题，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，我们的目标是建立基于脉冲整形技术的成熟的商业可用的光谱仪系统。使用所需的2D光谱仪系统，我们可以在整个可见光范围内执行2D光谱，重点放在电子态之间的跃迁上。关于红外范围，我们将能够在1000-3850厘米-1(2600-10000纳米)的范围内遵循振动动力学，这将非常适合预期的项目。

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.