Forthcoming Events

30.08.2020 - 04.09.2020, Online (Europe)

News

New scientific highlights- from MUST researchers at PSI
Promotion to full professorcongratulations to Steve Johnson!
The Laser at 60: Ursula KellerOPN interviewed OSA Fellows
Former EPFL PhD student Edoardo Baldini wins the 2020 ACS PHYS Division Young Investigator Awards
New scientific highlights- by MUST PIs Banerji, Chergui and Wolf
Prix de l'innovation AGROVINA 2020- for Agrolase: detecting spores of pathogens in real time
Ruth Signorell receives the Humboldt Prize- awarded in recognition of outstanding achievements in research and teaching
New scientific highlights- by MUST PIs Keller, Chergui, Richardson / Vanicek, Wörner, Castiglioni / Osterwalder / Hengsberger / van Bokhoven
Ursula Keller wins the SPIE 2020 Gold Medal- awarded in recognition of outstanding engineering or scientific accomplishments
Nobel Prize winner Gerard Mourou - Physics Colloquium 11.12.19: Passion Extreme Light

Structural dynamics

The time scale for electronic motion is that of attoseconds and for nuclear motion it ranges from femtoseconds for elementary processes, in particular photochemical processes that involve excited electronic states, to seconds or even longer for many biological processes. One wouldn’t necessarily characterize the timescales of biologically relevant processes in proteins as ultrafast, but no clear separations of timescales in their dynamics exist, so even the fastest processes need to be understood in order to predict the slower ones. Visualization of structural dynamics relies on probing techniques that are even faster than the events themselves and capturing dynamic processes in ‘real-time’ became possible with the advent of pico-, femto-, and attosecond sources delivering ultrashort pulses from the X-ray to the THz part of the spectrum. Specifically, with attosecond sources we can now observe the rearrangement or relaxation of the electronic excitations.

Within MUST, we have a unique combination of expertise in ultrafast MultiD spectroscopy, in ultrafast X-ray and electron diffraction, in X-ray absorption spectroscopy, in THz spectroscopy as well as in time-resolved photo electron spectroscopy. Additionally, MUST has a high concentration of competence in simulating the motion of electrons and nuclei in molecular compounds on various levels of theory, ranging from classical molecular dynamics simulations, over ab-initio based molecular dynamics on electronic ground and excited surfaces, up to a sophisticated quantum-dynamical treatment. To make efficient use of these simulation tools, also in view of the many collaborations between theoretical and experimental groups, MUST decided to purchase a large cluster computer. That is to say, the NCCR combines the required theoretical and experimental tools to address scientific problems within the grand challenges formulated above.

Research efforts within MUST not only aim at visualizing structural dynamics but also at controlling it through different means, such as catalysis on surfaces or optical pulse shaping techniques. Control is also an integral part of many experimental investigations, as it helps to disentangle difficult to interpret measurements.




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The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation
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