CRIF-MU: Cyber-Enabled Multi-User Laser Experiment (CyberMULE)

通过化学研究仪器和设施：多用户（CRIF:MU）项目的奖励，明尼苏达大学双子城分校（UM-TC）的William Tolman教授和圣托马斯学院的Joseph Brom， UM-TC的Aaron Massari，伍斯特学院的Sarah Schmidtke和北肯塔基大学的Keith Walters将获得一个可调谐的超快可见，近红外（NIR）和中红外（MIR）泵浦探针光谱仪，该光谱仪将位于UM-TC。使用尖端网络通信和硬件控制，可以从各个校园通过互联网远程访问这些仪器。该奖项将加强各级的研究培训和教育，特别是在以下领域的研究：(a)二吡啶甲烷染料分子的泵浦探测光谱，(b)导电聚合物的中红外泵浦探测光谱，(c)有机分子内电荷转移系统的光化学，以及(d)超分子有机金属组件的光物理学。网络支持的多用户激光实验（CyberMULE）将由一个高功率、超快激光系统组成，该系统产生两个脉冲光束线，穿过样品进行泵浦探测实验，通过网络界面进行控制和传播。在泵-探针实验中，一个大强度的泵脉冲激发样品中的分子，然后一个低强度的探针脉冲在受控延迟后到达，以监测由泵引起的任何与时间相关的变化。这些变化的性质取决于泵浦脉冲中光的波长（颜色），范围从光化学反应到电子转移事件再到结构运动。这些实验为各种应用提供了有关化合物和材料的内部结构和性质的信息。尽管该仪器将位于UM-TC的光谱设施中，但其他学院和大学的许多研究人员和学生将能够远程访问它。

With this award from the Chemistry Research Instrumentation and Facilities: Multi-user (CRIF:MU) program, Professor William Tolman from the University of Minnesota-Twin Cities (UM-TC) and colleagues Joseph Brom from the College of St. Thomas, Aaron Massari from UM-TC, Sarah Schmidtke from the College of Wooster and Keith Walters from Northern Kentucky University will acquire a tunable ultrafast visible, near IR (NIR), and mid-IR (MIR) pump-probe spectrometer that will be located at UM-TC. The instrumentation will be remotely accessible from various campuses via the internet using cutting edge network communication and hardware control. The award will enhance research training and education at all levels, especially in areas of study such as (a) pump-probe spectroscopy of dipyrromethane dye molecules, (b) mid-IR pump probe spectroscopy of conducting polymers, (c) photochemistry of organic intramolecular charge transfer systems, and (d) photophysics of supramolecular organometallic assemblies. The Cyber-enabled Multi-User Laser Experiment (CyberMULE) will consist of a high power, ultrafast laser system producing two pulsed beamlines that cross in a sample to perform pump-probe experiments that are controlled and disseminated through a web-interface. In a pump-probe experiment, a large intensity pump pulse excites the molecules in the sample, and then a low intensity probe pulse arrives after a controlled delay to monitor any time-dependent changes that were induced by the pump. The nature of these changes depends on the wavelength (color) of the light in the pump pulse, ranging from photochemical reactions to electron transfer events to structural motions. These experiments provide information on the internal structure and properties of compounds and materials important for various applications. Even though the instrumentation will be located in a spectroscopy facility at UM-TC many researchers and students at other colleges and universities will be able to access it remotely.