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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