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Ultrafast coupled electronic and lattice dynamics in exciton self-trapping: Correlation of the localization length and acoustic phonon dynamics

J.G. Mance, F.X. Morrissey, A.D. Van Pelt, and S.L. Dexheimer

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Abstract

We probe the dynamics of exciton self-trapping using femtosecond impulsive excitation techniques. We find a low frequency oscillatory response consistent with coherent acoustic phonon generation, with an acoustic wavelength that scales with exciton localization length.

© 2010 Optical Society of America

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