Multispectral multidimensional spectroscopy and its application to primary processes in photosynthesis
le 14 novembre 2019 à 11h15
Jennifer OGILVIE, Department of Physics, University of Michigan, Ann Arbor, USA
Lieu(x) : Amphithéatre Poisson, Ecole Polytechnique
Contact : Manuel Joffre
manuel.joffre at polytechnique.edu
The primary events of photosynthesis occur on ultrafast timescales with high quantum efficiency. Elucidating the design principles of photosynthetic systems remains an outstanding challenge that has the potential to impact our design of artificial light-harvesting materials. I will discuss our development of a multispectral multidimensional spectrometer (MMDS) enabling measurements spanning the ultraviolet, visible and mid-infrared as well as combination spectroscopies, over timescales of femtoseconds to seconds. I will illustrate some of the capabilities of the MMDS instrument through our efforts to probe the electronic structure and charge separation mechanisms of the photosystem II and purple bacterial reaction centers.
À télécharger : Séminaire OGILVIE