Phonon-Pair combination states driven by second-order Raman scattering in KTaO3

A. Bartels; T. Dekorsy; H. Kurz

doi:10.1364/UP.2000.TuD3

Ultrafast Phenomena
OSA Trends in Optics and Photonics (Optica Publishing Group, 2000),
paper TuD3
•https://doi.org/10.1364/UP.2000.TuD3

Phonon-Pair combination states driven by second-order Raman scattering in KTaO₃

A. Bartels, T. Dekorsy, and H. Kurz

International Conference on Ultrafast Phenomena 2000

Charleston, South Carolina United States
ISBN: 1-55752-640-0

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Electron-Phonon Effects in Solids (TuD)

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A. Bartels, T. Dekorsy, and H. Kurz, "Phonon-Pair combination states driven by second-order Raman scattering in KTaO3," in Ultrafast Phenomena, T. Li, ed., Vol. 43 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2000), paper TuD3.

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Abstract

Excitation of KTa0₃ with ultrashort laser pulses drives phonon-pair combination states via impulsive second-order Raman-scattering. A model explains the resulting displacementamplitude covariance-oscillations of the two correlated phonon modes observed in a pump-probe experiment.

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