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Measuring the Time-Dependent Exciton Delocalization Size in the B850 Band of Purple Bacterial LH2

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Abstract

Several ultrafast coherence spectroscopies are employed to study initially delocalized excitons and their subsequent sub-100 fs localization dynamics in LH2. Rigorous simulations of the exciton relaxation process allow determination of the time-dependent exciton size.

© 2000 Optical Society of America

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