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The Relaxation Process of Polydiacetylene in Its Excitonic States Studied by Time- and Frequency-Resolved Femtosecond CARS Spectroscopy

T. Chen, A. Vierheilig, P. Waltner, W. Kiefer, and A. Materny

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Abstract

Frequency-resolved femtosecond CARS was applied to polydiacetylenes to study ultrafast relaxation processes. The geometry relaxation of the backbones from free excitonic (FE) to self-trapped excitonic (STE) states and dephasing in STE states are observed.

© 2000 Optical Society of America

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