28–31 Aug 2018
EPFL
Europe/Zurich timezone

【101】 Decomposing ultrafast broadband transient spectra with the help of anisotropy

29 Aug 2018, 16:30
15m
CE 1 (EPFL)

CE 1

EPFL

Talk Condensed Matter Physics (KOND) Condensed Matter Physics

Speaker

Dr Bernhard Lang (Department of Physical Chemistry, University of Geneva)

Description

Broadband transient absorption is a widely used tool in the domain of ultrafast spectroscopy. However, standard chemometrie methods for decomposing spectra into components associated to the involved species like global and target analysis or singular value decomposition cannot be used when the spectral shapes of these components exhibit temporal changes, for instance due to internal conversion, vibrational cooling or solvation dyanmics. We present a method which uses anisotropy measurements to perform such decompositions without the need of an a priori knowledge of the shape nor the kinetics of the involved spectral components.

Author

Dr Bernhard Lang (Department of Physical Chemistry, University of Geneva)

Co-author

Dr Arnulf Rosspeintner

Presentation materials

There are no materials yet.