Two-Dimensional Electronic Spectroscopy- Basics and Applications to Bio-Systems
Date | Do, 08.11.2012 | |
Time | 10.15 | |
Speaker | Dr. Jürgen Hauer, Multidimensional Molecular Spectroscopy Group, Photonics Institute, Vienna Technical University | |
Location | Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern | |
Program | Two-dimensional electronic spectroscopy (2D-ES) with ultrashort pulses is a state-of-the-art tool for the investigation of molecular dynamics, line broadening mechanisms and quantum coherence phenomena in biology. In this talk, I will explain the basics of 2D-ES and compare to other ultrafast experimental techniques like pump-probe. Focusing on biological systems, I will discuss several experimental studies where 2D-ES lead to insightful and experimentally well- founded perspectives on intricate molecular population- and coherence-dynamics. Examples are the exciton dynamics in natural photosynthetic complexes, the energy deactivation network in carotenoids and the relaxation pathways in an artificial light harvesting system. In an outlook, I will demonstrate how 2D-ES is easily upgraded by the use of pulse shaping devices. | |
Link | www.iap.unibe.ch |