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The 869th IMS colloquium

Lecture Title "Combining ultrafast optical and core-level spectroscopies for the study of chemical dynamics"
Date Wednesday 8 April 2015 16:30
Lecturer Prof. Majed Chergui (Ecole Polytechnique Fédérale de Lausanne)
Place

Institute for Molecular Science, Research Building, Seminar Room#201
Summary

The advent of femtosecond (fs) laser technology some twenty five years ago opened a whole new era in Science because of its ability to probe in “real-time” nuclear motion in molecules, crystals, liquids and proteins. In the past fifteen years, huge efforts have been deployed aimed at combing the high time resolution of fs lasers with the high spatial resolutions of structural techniques, such as X-ray and electron diffraction and X-ray spectroscopies. This has culminated with the advent of sources of ultrashort X-ray or electron pulses, such as the slicing scheme at synchrotrons, the X-ray free electron lasers and new electron pulse compression schemes. In parallel, lab-based sources of ultrashort vacuum ultraviolet and soft X-rays based on the process of High Harmonic Generation reach the sub-fs domain, which make it possible to study the underlying electronic structure changes which drive the actual structural dynamics of systems. I will present these developments and will illustrate them by some of the most recent achievements in the field of chemical dynamics. I will also discuss the perspectives they offer for materials science, chemistry and biology.

Prof. Majed Chergui　http://lsu.epfl.ch/
Contact

KOSUGI, Nobuhiro
IINO, Ryota & MASAOKA, Shigeyuki (The members of the committee of the IMS colloquium in 2015)
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