报告题目：PROBING ULTRAFAST ELECTRON AND SPIN DYNAMICS IN MOMENTUM, SPACE, AND TIME

报 告 人：Martin Aeschlimann, Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany

报告时间：2017-11-24 10:00

报告地点：物理系理科楼C302

报告摘要：Optically excited (hot) electrons play a crucial role for many fundamental chemical and physical phenomena occurring at surfaces, interfaces, and in bulk materials. They, for instance, determine the properties of photo-induced catalysis at surfaces, and the efficiency of charge and spin transfer across interfaces between different materials. For the investigation of such processes, time-resolved photoelectron spectroscopy did turn out to be a very powerful tool through its direct access to transient band-structure dynamics. In particular, very recent progresses in the development of ultrashort pulsed light sources and electron spectrometers have paved the way for a completely new generation of real-time photoemission techniques. The review concludes with an outlook to the feasibility of future real-time studies in surface and material science.