Fast Exciton Dynamics and Coherent Oscillations Revealed by Coherent 2D Spectroscopy in Chlorosomes
1 Department of Chemical Physics, Lund University, Getingevägen 60, 221 00 Lund, Sweden
2 Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague, Czech Republic
3 Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budejovice, Czech Republic
In this study ultrafast energy transfer dynamics in chlorosomes from sulphur bacterium Chlorobaculum tepidum were explored by means of coherent electronic two-dimensional spectroscopy. Observed sub-100 fs dynamics were attributed to incoherent downhill excitation diffusion between disordered domains within chlorosomes. At the same time vibrational coherent oscillations were investigated on the longer timescales.
© Owned by the authors, published by EDP Sciences, 2013
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