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; S.L. Dexheimer

doi:10.1364/UP.2010.ThD1

International Conference on Ultrafast Phenomena
OSA Technical Digest (CD) (Optica Publishing Group, 2010),
paper ThD1
•https://doi.org/10.1364/UP.2010.ThD1

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

International Conference on Ultrafast Phenomena 2010

Snowmass, Colorado United States
18–23 July 2010
ISBN: 978-1-55752-894-0

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Vibrational Coherence and Energy Transport (ThD)

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J. G. Mance, F. X. Morrissey, A. D. Van Pelt, and S. L. Dexheimer, "Ultrafast coupled electronic and lattice dynamics in exciton self-trapping: Correlation of the localization length and acoustic phonon dynamics," in International Conference on Ultrafast Phenomena, OSA Technical Digest (CD) (Optica Publishing Group, 2010), paper ThD1.

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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.

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