Abstract
The 2D measurements on a light harvesting complex by Fleming and coworkers showed long lived oscillations [1] suggesting the existance of quantum-coherent effects in large macromolecules. In order to gain a deeper insight into these coherent phenomena, the intramolecular energy dissipation in restricted size molecules has to be investigated. Here we present a combined pump-probe and 2D-UV investigation of pyrene in solution, showing that in this molecule the coherent excitation of vibrational states survives the S2-S1 internal conversion (figure 1a).
© 2013 IEEE
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