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Exciton Chirality and Vibronic Coupling: Ultrafast Angular Momentum Changes in Molecular Aggregates Detected by Time-Resolved Raman Spectroscopy

Christopher C. Rich and Renee R. Frontiera

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Abstract

We show that vibronic coupling of exciton states in helical porphyrin aggregates leads to ultrafast evolution of the exciton angular momentum from chiral to achiral through time-dependent depolarization ratios measurements.

© 2022 The Author(s)

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