Elettra-Sincrotrone Trieste S.C.p.A. website uses session cookies which are required for users to navigate appropriately and safely. Session cookies created by the Elettra-Sincrotrone Trieste S.C.p.A. website navigation do not affect users' privacy during their browsing experience on our website, as they do not entail processing their personal identification data. Session cookies are not permanently stored and indeed are cancelled when the connection to the Elettra-Sincrotrone Trieste S.C.p.A. website is terminated.
More info
OK

Seminars Archive

Coherent Signatures of non-adiabatic dynamics in ultrafast X-ray spectroscopy

Markus Kowalewsky (Stockholm University)
Thu 13 Jun, at 10:00 - Seminar Room T2

Abstract
The rates and outcomes of virtually all photochemical and photobiological processes are dominated by conical intersections (CIs), which provide a fast sub-100-femtosecond nonradiative pathway back to the ground state. At a CI, the electronic and nuclear degrees of freedom frequencies are comparable and strongly mix due to the breakdown of the Born-Oppenheimer approximation. A major challenge for their direct detection is the rapidly varying gap between the electronic surfaces in their vicinity. Modern XUV/X-ray light sources provide spectral broad and temporal short pulses, which potentially allow for monitoring CIs directly. We present theoretical studies on novel spectroscopic methods, which make use of ultrashort X-Ray laser pulses. The presented methods include Raman (TRUECARS), time resolved photo electron spectroscopy and possible signatures of electronic coherences in time resolved X-Ray diffraction

(Referer: R. Mincigrucci)
Last Updated on Tuesday, 24 April 2012 15:21